This document discusses some basic concepts of Java programming language such as Java interpreter, compilation process, class definitions, main method, object-oriented principles, identifiers, variables, data types, literals, arrays, operators, and precedence rules. It provides answers to multiple choice questions testing understanding of these concepts.
The document discusses various aspects of exception handling in Java. It begins by defining the difference between 'throw' and 'throws', and their applications. It then discusses the difference between Exceptions and Errors, defines resource leaks, and describes the purpose and behavior of the 'finally' block. It provides answers to questions around try/catch blocks, exception objects, and defining multiple exceptions in the 'throws' clause.
This document contains 30 multiple choice questions about Java programming concepts like I/O, data types, classes, threads, and more. It tests knowledge of Java keywords, syntax, and core APIs. The questions cover a wide range of fundamental and advanced Java topics including defining variables, writing classes, using control structures, creating and running threads, and working with strings, arrays, and other data types.
This document contains an answer key for a C# quiz. It includes multiple choice questions with answers, short questions answered in 1-2 sentences, and longer questions about C# operators and data types. Specifically, it covers relational operators, explicit type conversion, sealed classes, return values, abstract classes, C# data types like int and float, the use of 'alias', the difference between break and continue statements, types of errors at compile-time and run-time, and the syntax for an else if ladder in C#.
This document discusses object-oriented programming concepts in C++ such as abstraction, encapsulation, inheritance, and polymorphism. It also covers access specifiers like public, private, and protected. Other topics include friend functions and classes, static and non-static members, constructors, destructors, and inheritance.
This document contains a list of core Java interview questions and answers. Some key points:
- Threads enter a waiting state on I/O so that other threads can execute while I/O operations are performed.
- The List interface represents an ordered collection of objects.
- yield() returns a thread to the ready state, while sleep() places a thread in the not ready state for a specified time period.
- Wrapper classes allow primitive data types to be accessed as objects.
This document contains a quiz on C++ programming concepts with multiple choice questions and answers. There are questions about linkage types in C++, static and extern keywords, function prototypes, operator overloading, complex numbers, type conversions, friend functions, and virtual functions. The document provides explanations for some answers.
This document provides an introduction to the C# programming language. It discusses the objectives and structure of the first lecture, including an overview of the anatomy of a basic C# program that prints text to the console. The lecture then covers key concepts like variables, data types, arithmetic operators, input/output statements, and decision-making statements. Examples are provided to demonstrate how to write, compile, and run a simple C# program.
The document discusses various aspects of exception handling in Java. It begins by defining the difference between 'throw' and 'throws', and their applications. It then discusses the difference between Exceptions and Errors, defines resource leaks, and describes the purpose and behavior of the 'finally' block. It provides answers to questions around try/catch blocks, exception objects, and defining multiple exceptions in the 'throws' clause.
This document contains 30 multiple choice questions about Java programming concepts like I/O, data types, classes, threads, and more. It tests knowledge of Java keywords, syntax, and core APIs. The questions cover a wide range of fundamental and advanced Java topics including defining variables, writing classes, using control structures, creating and running threads, and working with strings, arrays, and other data types.
This document contains an answer key for a C# quiz. It includes multiple choice questions with answers, short questions answered in 1-2 sentences, and longer questions about C# operators and data types. Specifically, it covers relational operators, explicit type conversion, sealed classes, return values, abstract classes, C# data types like int and float, the use of 'alias', the difference between break and continue statements, types of errors at compile-time and run-time, and the syntax for an else if ladder in C#.
This document discusses object-oriented programming concepts in C++ such as abstraction, encapsulation, inheritance, and polymorphism. It also covers access specifiers like public, private, and protected. Other topics include friend functions and classes, static and non-static members, constructors, destructors, and inheritance.
This document contains a list of core Java interview questions and answers. Some key points:
- Threads enter a waiting state on I/O so that other threads can execute while I/O operations are performed.
- The List interface represents an ordered collection of objects.
- yield() returns a thread to the ready state, while sleep() places a thread in the not ready state for a specified time period.
- Wrapper classes allow primitive data types to be accessed as objects.
This document contains a quiz on C++ programming concepts with multiple choice questions and answers. There are questions about linkage types in C++, static and extern keywords, function prototypes, operator overloading, complex numbers, type conversions, friend functions, and virtual functions. The document provides explanations for some answers.
This document provides an introduction to the C# programming language. It discusses the objectives and structure of the first lecture, including an overview of the anatomy of a basic C# program that prints text to the console. The lecture then covers key concepts like variables, data types, arithmetic operators, input/output statements, and decision-making statements. Examples are provided to demonstrate how to write, compile, and run a simple C# program.
Std 12 computer chapter 8 classes and objects in java important MCQsNuzhat Memon
Std 12 Computer Chapter 8 Classes and Objects in Java important MCQs
Std 12 Computer MCQs
Computer std 12 mcq ch 8
computer std 12 ch 8 mcq
std 12 important mcq
chapter 8 Classes and Object in Java
creating a class in java
creating an object in java
constructor in java
inheritance in java
polymorphism in java
method overloading and method overridden
Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. It runs on a variety of platforms such as Windows, Mac OS, and various versions of UNIX. Key features of Java include being object-oriented, platform independent, robust, interpreted, and multi-threaded. When Java is compiled, it is compiled into platform independent byte code that is distributed and interpreted by the Java Virtual Machine (JVM) on whichever platform it is being run on, providing platform independence. Common Java IDEs include Netbeans and Eclipse.
The document discusses various topics related to C programming language and C++. It begins by providing definitions for C language and describing its origins and widespread usage. It then lists different types of constants and instructions in C. Next, it defines pointers and compares arrays and pointers. The document also compares C and C++ and discusses differences between their features like inheritance, function overloading, and variable declaration. Finally, it covers additional C++ topics such as classes, structures, storage qualifiers, and virtual/friend classes.
The document discusses object oriented programming concepts related to exception handling in Java. It covers the benefits of exception handling such as separating error handling code from regular logic and propagating errors up the call stack. It also describes key exception handling constructs like try, catch, throw and throws. The different exception models of termination and resumption are explained along with the exception hierarchy in Java.
This document provides an overview of the C++ programming language, including its history, features, and key concepts. It discusses how C++ extends the C language and is an intermediate-level language that incorporates both high-level and low-level features. The document also outlines important C++ concepts like object-oriented programming, data types, operators, variables, classes, and control structures. It provides examples and definitions of objects, classes, encapsulation, inheritance, polymorphism and other fundamental OOP concepts.
Identifiers in Java refer to variables, methods, classes, packages and interfaces by name rather than being the things themselves. Parameters passed to methods are passed by value. A constructor creates an instance of a class by allocating memory and initializing the object. Packages in Java are used to organize related classes and interfaces and provide access protection.
Does Java Have a Future After Version 8? (Belfast JUG April 2014)Garth Gilmour
Presented to the Belfast Java User Group in April 2014 this talk explores if the changes made to Java in version 8 are enough to keep it the dominant programming platform.
This presentation introduces the main features of Scala, an object oriented and functional programming language. The main focus of the slides is to show how the language implements natively some of the patterns and best practices that are no present in other programming languages, such as Java, C++ and so on.
In detail, the presentation spans these concepts:
- Language's main syntax
- Classes, abstract classes, objects and traits (mixin)
- The Option class
- An introduction to generics
- Implicit classes
- Functions
- Recursion (simple and tail)
- Currying
- Call by value / name
The presentation is took from the Software Engineering course I run in the bachelor-level informatics curriculum at the University of Padova.
This document provides an overview of C++ and object-oriented programming concepts. It discusses:
1. C++ is an object-oriented programming language introduced in the 1980s that retains the power of C and adds classes, inheritance, function overloading, and operator overloading.
2. OOP languages like C++ are well-suited for developing large, complex programs like editors, compilers, databases, and communication systems due to features like modularity and code reusability.
3. A simple C++ program is presented that demonstrates basic syntax like main(), comments, cout and << operators, and return type for main(). Classes and member functions are also introduced.
This document provides an overview of C# programming basics, including:
- C# is an object-oriented language where the basic unit is a class containing methods and variables.
- A C# program consists of at least one class that must contain a Main method, which acts as the program entry point.
- The document discusses basic C# concepts like variables, data types, operators, conditional statements, loops, methods, and arrays.
- It also covers how to compile and run a simple "Hello World" C# program, and provides examples of different programming constructs.
This document contains 55 questions and answers related to core Java concepts. Some key topics covered include threads and concurrency (questions 3, 5, 39), exceptions (question 41), collections and generics (questions 13, 15, 19), and GUI components and layouts (questions 2, 9, 10). The questions cover a wide range of fundamental Java topics for interview purposes.
This document summarizes features introduced in C# 2, including delegates, anonymous methods, and delegate variance. Delegates allow passing methods as arguments and are used for events. C# 2 simplified delegate instantiation and introduced anonymous methods, which define inline delegate code without a named method. Underneath, anonymous methods use compiler-generated classes to capture outer scope variables. Delegate variance allows compatibility between delegate types and instances if their return and parameter types are related through inheritance.
An introduction to some advanced language features of the object-oriented programming language Ruby, part of a full lecture on Programming Paradigms at UCL university in Belgium, focussing on the programming languages Smalltalk, Ruby and Java, with reflection and meta programming as underlying theme. This lecture looks into the Ruby features of higher-order programming (lambdas), singleton methods, mixin modules, reflection and metaprogramming.
This document provides an introduction to Python programming for an artificial intelligence lab course. It covers downloading and installing Python and the Anaconda distribution, using Spyder as an IDE, variables and data types in Python, and basic concepts like indentation, variable naming conventions, and Python keywords. The goal is to prepare students to use Python for labs related to artificial intelligence topics.
This document discusses method handles and lambda expressions in Java 8. It explains that method handles are references to methods that can be executed and are obtained through reflection. Method handles improve on reflection by caching access at lookup rather than invocation time. Lambda expressions allow anonymous blocks of code and are implemented using invokedynamic and method handles. When the compiler encounters a lambda expression, it is "desugared" into a private method and an invokedynamic instruction generates an instance of a functional interface to reference the lambda expression.
Operators in Java provide symbols that operate on arguments to produce results. The document discusses the different types of operators in Java including assignment, arithmetic, relational, logical, bitwise, and ternary operators. Examples are provided to demonstrate the usage of various operators like increment/decrement, arithmetic, relational, logical, bitwise, ternary, and instanceof operators in Java code.
The document discusses various topics related to empowerment technologies including:
- The popularity and usage of social media, smartphones, and the internet among groups.
- An overview of the internet including its origins, how it functions as an information network, and common internet applications.
- Descriptions of the World Wide Web and how it has grown to allow access to vast amounts of online information.
- Explanations of Web 2.0 technologies which enable greater user participation and collaboration online.
- A brief definition of the concept of Web 3.0 and its focus on more intelligent and intuitive online experiences.
- Mentions of convergent technologies and Assistive Media, a nonprofit that provides
The document discusses key topics related to information and communication technology (ICT). It defines ICT as the use of communication technologies like mobile phones and the internet to locate, save, send and edit information. It also discusses the evolution of the world wide web from static Web 1.0 pages to dynamic Web 2.0 pages that allow user interaction. Popular examples of social media and how they enable users to share content are provided. The top uses of ICT in the Philippines are also summarized.
2005
TAFE NSW International Center for Teaching and Learning
ICVET The Learning Powerhouse Whats happening in the engine room - Presenter
Teacher empowerment through technology
With technology there is no finishing line; there is constant change and possibility, there is no set way to use it for teaching and learning, technology is but a tool. It can seem over-whelming. What can a teacher do to stay afloat? Ask the Network...
Std 12 computer chapter 8 classes and objects in java important MCQsNuzhat Memon
Std 12 Computer Chapter 8 Classes and Objects in Java important MCQs
Std 12 Computer MCQs
Computer std 12 mcq ch 8
computer std 12 ch 8 mcq
std 12 important mcq
chapter 8 Classes and Object in Java
creating a class in java
creating an object in java
constructor in java
inheritance in java
polymorphism in java
method overloading and method overridden
Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. It runs on a variety of platforms such as Windows, Mac OS, and various versions of UNIX. Key features of Java include being object-oriented, platform independent, robust, interpreted, and multi-threaded. When Java is compiled, it is compiled into platform independent byte code that is distributed and interpreted by the Java Virtual Machine (JVM) on whichever platform it is being run on, providing platform independence. Common Java IDEs include Netbeans and Eclipse.
The document discusses various topics related to C programming language and C++. It begins by providing definitions for C language and describing its origins and widespread usage. It then lists different types of constants and instructions in C. Next, it defines pointers and compares arrays and pointers. The document also compares C and C++ and discusses differences between their features like inheritance, function overloading, and variable declaration. Finally, it covers additional C++ topics such as classes, structures, storage qualifiers, and virtual/friend classes.
The document discusses object oriented programming concepts related to exception handling in Java. It covers the benefits of exception handling such as separating error handling code from regular logic and propagating errors up the call stack. It also describes key exception handling constructs like try, catch, throw and throws. The different exception models of termination and resumption are explained along with the exception hierarchy in Java.
This document provides an overview of the C++ programming language, including its history, features, and key concepts. It discusses how C++ extends the C language and is an intermediate-level language that incorporates both high-level and low-level features. The document also outlines important C++ concepts like object-oriented programming, data types, operators, variables, classes, and control structures. It provides examples and definitions of objects, classes, encapsulation, inheritance, polymorphism and other fundamental OOP concepts.
Identifiers in Java refer to variables, methods, classes, packages and interfaces by name rather than being the things themselves. Parameters passed to methods are passed by value. A constructor creates an instance of a class by allocating memory and initializing the object. Packages in Java are used to organize related classes and interfaces and provide access protection.
Does Java Have a Future After Version 8? (Belfast JUG April 2014)Garth Gilmour
Presented to the Belfast Java User Group in April 2014 this talk explores if the changes made to Java in version 8 are enough to keep it the dominant programming platform.
This presentation introduces the main features of Scala, an object oriented and functional programming language. The main focus of the slides is to show how the language implements natively some of the patterns and best practices that are no present in other programming languages, such as Java, C++ and so on.
In detail, the presentation spans these concepts:
- Language's main syntax
- Classes, abstract classes, objects and traits (mixin)
- The Option class
- An introduction to generics
- Implicit classes
- Functions
- Recursion (simple and tail)
- Currying
- Call by value / name
The presentation is took from the Software Engineering course I run in the bachelor-level informatics curriculum at the University of Padova.
This document provides an overview of C++ and object-oriented programming concepts. It discusses:
1. C++ is an object-oriented programming language introduced in the 1980s that retains the power of C and adds classes, inheritance, function overloading, and operator overloading.
2. OOP languages like C++ are well-suited for developing large, complex programs like editors, compilers, databases, and communication systems due to features like modularity and code reusability.
3. A simple C++ program is presented that demonstrates basic syntax like main(), comments, cout and << operators, and return type for main(). Classes and member functions are also introduced.
This document provides an overview of C# programming basics, including:
- C# is an object-oriented language where the basic unit is a class containing methods and variables.
- A C# program consists of at least one class that must contain a Main method, which acts as the program entry point.
- The document discusses basic C# concepts like variables, data types, operators, conditional statements, loops, methods, and arrays.
- It also covers how to compile and run a simple "Hello World" C# program, and provides examples of different programming constructs.
This document contains 55 questions and answers related to core Java concepts. Some key topics covered include threads and concurrency (questions 3, 5, 39), exceptions (question 41), collections and generics (questions 13, 15, 19), and GUI components and layouts (questions 2, 9, 10). The questions cover a wide range of fundamental Java topics for interview purposes.
This document summarizes features introduced in C# 2, including delegates, anonymous methods, and delegate variance. Delegates allow passing methods as arguments and are used for events. C# 2 simplified delegate instantiation and introduced anonymous methods, which define inline delegate code without a named method. Underneath, anonymous methods use compiler-generated classes to capture outer scope variables. Delegate variance allows compatibility between delegate types and instances if their return and parameter types are related through inheritance.
An introduction to some advanced language features of the object-oriented programming language Ruby, part of a full lecture on Programming Paradigms at UCL university in Belgium, focussing on the programming languages Smalltalk, Ruby and Java, with reflection and meta programming as underlying theme. This lecture looks into the Ruby features of higher-order programming (lambdas), singleton methods, mixin modules, reflection and metaprogramming.
This document provides an introduction to Python programming for an artificial intelligence lab course. It covers downloading and installing Python and the Anaconda distribution, using Spyder as an IDE, variables and data types in Python, and basic concepts like indentation, variable naming conventions, and Python keywords. The goal is to prepare students to use Python for labs related to artificial intelligence topics.
This document discusses method handles and lambda expressions in Java 8. It explains that method handles are references to methods that can be executed and are obtained through reflection. Method handles improve on reflection by caching access at lookup rather than invocation time. Lambda expressions allow anonymous blocks of code and are implemented using invokedynamic and method handles. When the compiler encounters a lambda expression, it is "desugared" into a private method and an invokedynamic instruction generates an instance of a functional interface to reference the lambda expression.
Operators in Java provide symbols that operate on arguments to produce results. The document discusses the different types of operators in Java including assignment, arithmetic, relational, logical, bitwise, and ternary operators. Examples are provided to demonstrate the usage of various operators like increment/decrement, arithmetic, relational, logical, bitwise, ternary, and instanceof operators in Java code.
The document discusses various topics related to empowerment technologies including:
- The popularity and usage of social media, smartphones, and the internet among groups.
- An overview of the internet including its origins, how it functions as an information network, and common internet applications.
- Descriptions of the World Wide Web and how it has grown to allow access to vast amounts of online information.
- Explanations of Web 2.0 technologies which enable greater user participation and collaboration online.
- A brief definition of the concept of Web 3.0 and its focus on more intelligent and intuitive online experiences.
- Mentions of convergent technologies and Assistive Media, a nonprofit that provides
The document discusses key topics related to information and communication technology (ICT). It defines ICT as the use of communication technologies like mobile phones and the internet to locate, save, send and edit information. It also discusses the evolution of the world wide web from static Web 1.0 pages to dynamic Web 2.0 pages that allow user interaction. Popular examples of social media and how they enable users to share content are provided. The top uses of ICT in the Philippines are also summarized.
2005
TAFE NSW International Center for Teaching and Learning
ICVET The Learning Powerhouse Whats happening in the engine room - Presenter
Teacher empowerment through technology
With technology there is no finishing line; there is constant change and possibility, there is no set way to use it for teaching and learning, technology is but a tool. It can seem over-whelming. What can a teacher do to stay afloat? Ask the Network...
This document outlines plans for a radio station's IPL cricket coverage, including selecting cricket fans as correspondents to provide live updates and reactions from matches in Chennai. Correspondents will get to watch every Chennai match and conduct interviews before and after games. The station will also have a daily countdown to the IPL, providing team facts and profiles. During matches, they will have live commentary, updates, previews and reviews. A weekly quiz will offer prizes like attending a Super Kings game. Listeners can predict innings scores to win cricket merchandise.
This document contains 30 multiple choice or fill-in-the-blank questions about players, teams, statistics, and events related to different seasons of the Indian Premier League (IPL) cricket tournament. The questions cover topics like highest run scorers, brothers playing on different teams, maximum runs scored in an over, hattricks taken by players of different nationalities, debuts of players' sons, team mascots, player trades between teams, and more.
Java Multiple Choice Questions and AnswersJava Projects
http://www.javaassignmenthelp.net/java-multiple-choice-questions-with-answers/ Advanced java multiple choice questions and answers are important if you want to pass on your exam. Check this presentation to learn more about Java multiple choice questions and answers.
The Collection API provides classes and interfaces that support operations on collections of objects, such as HashSet, HashMap, ArrayList, and LinkedList. It replaces vectors, arrays, and hashtables. Iterator is an interface used to iterate through elements of a Collection. The differences between an abstract class and interface are that interfaces provide multiple inheritance while abstract classes do not, and interfaces only define public methods without implementation.
This document contains a quiz on identifying various map symbols, with 20 multiple choice questions asking the user to identify symbols for features such as churches, hospitals, campsites, forests, beaches, and transportation infrastructure.
The document is a quiz about the Indian Premier League (IPL) consisting of 15 multiple choice questions. Some of the questions ask about IPL teams, players, records, and sponsors. Others ask about connecting individuals or identifying missing information related to the IPL.
Java (Information Technology) Question paper for T.Y BcaJIGAR MAKHIJA
This document appears to be a study guide or exam for a course on Internet Technology and Programming in Java. It contains questions about Java concepts like classes, packages, inheritance, interfaces, and threads. There are also questions asking to explain operators, exception handling, and data types in Java. Students are asked to write short programs demonstrating overloading, interfaces, and applets.
This document contains details about a business quiz competition being held on 12th February 2010 at Alagappa Institute of Management, Alagappa University in Karaikudi. It provides the ground rules for the quiz including that it is open to all participants, teams can have a maximum of two members, there will be 25 questions, and the top 5 teams will be selected for the finals. It then provides 25 multiple choice questions related to business, current affairs, and brands.
This document contains 15 multiple choice questions about records and trivia related to the Indian Premier League (IPL) T20 cricket tournament. Some of the questions ask about team jersey designs, players who have played for multiple teams, injury replacements, players who have won championships multiple times, and records for sixes, centuries, and best bowling figures in an innings. The answers provided are short player or team names indicating the correct response for each question.
Here I present the multiple choice questions (MCQs) from History of Computers, a chapter for Computer Fundamentals.
You can download the MS Word Document format and PNG format from http://fundamentalsmcq.com/history/download-history-mcq/
This document contains a set of 22 multiple choice questions about computer generations and technologies. It provides the questions along with brief explanatory paragraphs about computer history and generations. The questions cover topics like the defining technologies of each generation of computers, popular computers from different eras, programming languages developed in each generation, and more. The document concludes by sharing contact information to send additional MCQ questions or discuss computer topics further.
JAVA Programming Questions and Answers PART IIIOXUS 20
Oxus20 is a non-profit organization aimed at improving education by providing training and assistance to IT and computer science professionals. The name Oxus20 comes from the Amu Darya river, the largest river in Central Asia, which represents the hidden talents that the organization aims to develop. The organization seeks to create an environment conducive to nurturing talent and creativity among students and researchers, institutionalize extra-curricular scientific activities, identify gifted individuals to involve in advancing the scientific community, and produce specialized publications to disseminate modern science and technology in society.
Psychometric Test & Personality Evualuationsdusane1
This document discusses psychometric tests, which aim to measure mental ability, aptitude, or personality traits. They are used widely in recruitment and selection processes by large companies. The document outlines different types of psychometric tests, including aptitude, personality, and ability tests. It provides examples of specific tests like the MBTI, DISC, and 16PF models. It discusses what each test measures and how they are used to evaluate job candidates or promote employees based on fitting their skills and traits to occupational demands. Popular tests assess factors like conscientiousness, extraversion, emotional stability, and preferences for tasks. The document also covers how psychometric tests should be designed and administered to provide objective and standardized assessments.
Vani.R is a registered nurse and midwife from Bangarpet, Kolar District, India. She obtained her general nursing and midwifery degree from Suvarna Institute of Nursing in 2006. Currently, she works as a staff nurse in the labour room at a hospital in Saudi Arabia. Previously she has over 5 years of experience working in ICUs and labour rooms in hospitals in Bangalore and Kolar District. She is fluent in several languages and interested in working in medical and surgical ICUs as well as labour rooms.
Here I present Computer Hardware Concepts MCQ Paper for you to download. Enjoy!
This MCQ paper contains 80 multiple choice questions with four options each, all from Computer Hardware Concepts chapter.
Solved Question Paper of Computer Operator Examination Conducted by EPF 2016Suresh Khanal
The document contains a solved question paper for a Computer Operator Examination conducted by EPF (Employee Provident Fund) with 50 multiple choice questions related to computer fundamentals. Some key topics covered include components of a computer system, operating systems, applications like MS Word, Excel and PowerPoint. The questions test the candidate's knowledge of basic computer terminology, specifications, commands and features of standard software. An explanation is provided for each answer with relevant details to justify the correct option.
Javainterviewquestions 110607071413-phpapp02Kumaran K
The document contains 31 questions and answers about Java concepts. Some key topics covered include:
- Why pointers are eliminated in Java
- The difference between functions and methods
- Which part of the JVM allocates memory for a Java program
- The garbage collection algorithm used in Java
- How to call the garbage collector
- The difference between print() and println() methods
- What happens if the main() method is not defined correctly
- The difference between float and double data types
The document contains 31 questions and answers about Java concepts. Some key topics covered include:
- Why pointers are eliminated in Java
- The difference between functions and methods
- Which part of the JVM allocates memory
- The garbage collection algorithm used
- How to call the garbage collector
- What a JIT compiler is
- The difference between print() and println() methods
This document contains frequently asked Java core questions and their answers. It discusses object-oriented programming concepts like encapsulation, inheritance and polymorphism. It also covers Java programming fundamentals like classes, objects, methods, constructors, access modifiers, exceptions and errors. Additionally, it explains concepts related to threads and concurrency in Java like synchronization, deadlocks and daemon threads. It also provides differences between key terms like inheritance vs overriding, interface vs abstract class, applications vs applets and more.
C++ provides classes as templates to define common data structures and algorithms. Classes like vector and list define containers that store and retrieve objects through iterators. Iterators allow traversing container elements without knowing details of the underlying data structure. The Standard Template Library contains many useful container and algorithm classes that take advantage of templates and iterators to provide powerful and flexible generic programming capabilities in C++.
Object oriented programming organizes a program around objects and well defined interfaces to access data. Procedural programming follows procedures while OOP uses objects that combine data and code. Encapsulation binds code and data, inheritance allows objects to acquire properties of another, and polymorphism allows a common interface for general actions. Constructors initialize objects on creation while methods operate on class instances. Inner classes can be defined within other classes or methods.
This document contains over 100 questions and answers about C language concepts to help with interviews and quick references. Some key topics covered include pointers, structures, unions, memory allocation functions like malloc and calloc, macros, static and global variables, arrays vs linked lists, enumerations, and more. The questions range from basic to more advanced topics on pointers, memory management, and C programming concepts.
Full CSE 310 Unit 1 PPT.pptx for java languagessuser2963071
This document discusses Java programming fundamentals including naming conventions, data types, literals, and writing a basic Java program. It covers lowercase and uppercase naming rules for variables, methods, and classes. It also describes numeric, boolean, character, and string literals. Key data types like int, float, char, and their ranges are explained. The document provides examples of type conversion, casting, and type promotion in expressions. It concludes with steps for compiling and running a Java program.
This document contains answers to questions about various C programming concepts. It defines a function as a group of statements that perform a task, and a pointer as a variable that holds the address of another variable. It describes an array as a collection of elements of the same type stored in contiguous memory locations. It also defines structures, unions, strings, macros, typedef, call by value vs reference, and more. It includes programs to check for a leap year, prime numbers, factorials, Fibonacci series, and other examples.
This document contains frequently asked questions about C programming. It was developed by David Livingsto J from Coimbatore, India. His contact email is provided. The document contains 20 questions about various C programming concepts like operators, expressions, decision making statements, loops, functions, arrays, and more. Each question is followed by an answer that explains the concept in 1-2 paragraphs.
This document contains frequently asked questions (FAQs) in C programming. It was developed by David Livingsto J from Coimbatore, India. His contact email and blogs are provided. The FAQs cover various C programming topics like arithmetic operators, relational operators, logical operators, decision making statements, looping statements, arrays, functions, recursion, and more. Each question is followed by a detailed answer explaining the relevant concept.
Variable is a name for a memory location that can store data of different types. There are three types of variables in Java: local variables which are declared within methods and can only be used locally, instance variables which are declared within a class but outside methods and can be accessed by any instance method, and static variables which have a single copy shared among all instances of a class.
Structured Languages- Need and Characteristics of OOP, Data Types and Modifiers, Arrays, Classes, Objects, Pointers, References, Difference between Pointers and References, Inheritance, Constructors, Destructors, and Polymorphism.
The document provides an introduction to the Java programming language. It discusses what computer programs and programming languages are, and how Java programs are compiled into bytecode that can run on any machine with a Java interpreter. It then covers basic Java concepts like variables, primitive data types, operators, and object-oriented programming principles. The document includes examples of writing a simple Java program to output "Hello World" and explanations of core Java topics to help new programmers learn the language.
This document provides solutions to exercises from Chapters 1 through 14 of a Java textbook. It presents solutions for 28 different exercises involving Java concepts like classes, objects, inheritance, polymorphism, and interfaces. Each solution is a code listing or brief explanation.
This document provides summaries of common Java interview questions. It discusses the differences between abstract classes and interfaces, checked and unchecked exceptions, user-defined exceptions, differences between C++ and Java, Java statements, JAR files, JNI, serialization, null interfaces, synchronized methods, singleton classes, compilation units, resource bundles, transient variables, the Collection API, iterators, observers and observables, synchronization, locks on classes, thread states, anonymous classes, primitive data types and their ranges.
The document discusses various topics related to programming in C including data types, constants, expressions, decision making statements, and a sample C program structure. It provides 20 questions with explanations on these topics. It also includes a sample C program to calculate the sum of 10 non-negative numbers entered by the user, illustrating the use of various data types in C programming.
In procedural programs, logic follows procedures and instructions execute sequentially, while in object-oriented programs (OOP), the unit is the object which combines data and code. OOP programs encapsulate data within objects and assure security, while procedural programs expose data. Encapsulation binds code and data, inheritance allows acquiring properties of another object, and polymorphism allows a general interface for class actions. Initialization can only occur once while assignment can occur multiple times. OOP organizes programs around objects and well-defined interfaces to data, with objects controlling access to code.
These are some of the FAQ's that are asked in TCS NQT exam. By preparing these questions you can obtain good marks.
NOTE: These are FAQ's don't completely relay on it.
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1. Java Basics
1)The Java interpreter is used for the execution of the source code.
The
True
False
Ans: a.
2) On successful compilation a file with the class extension is created.
a) True
b) False
Ans: a.
3) The Java source code can be created in a Notepad edit
editor.
a) True
b) False
Ans: a.
4) The Java Program is enclosed in a class definition.
a) True
b) False
Ans: a.
5) What declarations are required for every Java application?
Ans: A class and the main( ) method declarations.
6) What are the two parts in execut a Java program and their purposes?
executing
Ans: Two parts in executing a Java program are:
Java Compiler and Java Interpreter.
The Java Compiler is used for compilation and the Java Interpreter is used for execution of the
application.
7) What are the three OOPs principles and define them?
Ps
Ans : Encapsulation, Inheritance and Polymorphism are the three OOPs
Principles.
Encapsulation:
Is the Mechanism that binds together code and the data it manipulates, and keeps both safe from
outside interference and misuse.
Inheritance:
Is the process by which one object acquires the properties of another object.
Polymorphism:
Is a feature that allows one interface to be used for a general class of actions.
Page 1
2. 8) What is a compilation unit?
Ans : Java source code file.
9) What output is displayed as the result of executing the following statement?
hat
System.out.println("// Looks like a comment.");
// Looks like a comment
The statement results in a compilation error
Looks like a comment
No output is displayed
Ans : a.
10) In order for a source code file, containing the public class Test, to successfully compile, which of
the following must be true?
It must have a package statement
It must be named Test.java
It must import java.lang
It must declare a public class named Test
Ans : b
11) What are identifiers and what is naming convention?
Ans : Identifiers are used for class names, method names and variable names. An identifier may be any
descriptive sequence of upper case & lower case letters,numbers or underscore or dollar si and must
sign
not begin with numbers.
12) What is the return type of program’s main( ) method?
Ans : void
13) What is the argument type of program’s main( ) method?
Ans : string array.
14) Which characters are as first characters of an identifier?
Ans : A – Z, a – z, _ ,$
15) What are different comments?
Ans : 1) // -- single line comment
2) /* --
*/ multiple line comment
3) /** --
*/ documentation
16) What is the difference between constructor method and method?
Ans : Constructor will be automatically invok when an object is created, where as method has to be
invoked
call explicitly.
Page 2
3. 17) What is the use of bin and lib in JDK?
Ans : Bin contains all tools such as javac, applet viewer, awt tool etc., whereas Lib contains all packages
and variables.
Data types,variables and Arrays
riables
1) What is meant by variable?
Ans: Variables are locations in memory that can hold values. Before assigning any value to a variable, it
must be declared.
2) What are the kinds of variables in Java? What are their uses?
Ans: Java has three kinds of variables namely, the instance variable, the local variable and the class
e
variable.
Local variables are used inside blocks as counters or in methods as temporary variables and are used to
store information needed by a single method.
Instance variables are used to define attributes or the state of a particular object and are used to store
iables
information needed by multiple methods in the objects.
Class variables are global to a class and to all the instances of the class and are useful for communicati
communicating
between different objects of all the same class or keeping track of global states.
3) How are the variables declared?
Ans: Variables can be declared anywhere in the method definition and can be initialized during their
declaration. They are commonly declared before usage at the beginning of the definition.
declared
Variables with the same data type can be declared together. Local variables must be given a value
before usage.
4) What are variable types?
Ans: Variable types can be any data type that java supports, which includes the eight primitive data
types, the name of a class or interface and an array.
5) How do you assign values to variables?
Ans: Values are assigned to variables using the assignment operator =.
6) What is a literal? How many types of literals are there?
Ans: A literal represents a value of a certain type where the type describes how that value behaves.
Page 3
4. There are different types of literals namely number literals, character literals, boolean literals, string
literals, etc.
7) What is an array?
Ans: An array is an object that stores a list of items.
8) How do you declare an array?
Ans: Array variable indicates the type of object that the array holds.
Ex: int arr[];
9) Java supports multidimensional arrays.
a) True
b) False
Ans: a.
10) An array of arrays can be created.
rrays
a) True
b) False
Ans: a.
11) What is a string?
Ans: A combination of characters is called as string.
12) Strings are instances of the class String.
a) True
b) False
Ans: a.
13) When a string literal is used in the program, Java automatically creates instances of the string
automatically
class.
a)True
b)False
Ans: a.
14) Which operator is to create and concatenate string?
Ans: Addition operator(+).
15) Which of the following declare an array of string objects?
a) String[ ] s;
b) String [ ]s:
c) String[ s]:
d) String s[ ]:
Page 4
5. Ans : a, b and d
16) What is the value of a[3] as the result of the following array declaration?
a) 1
b) 2
c) 3
d) 4
Ans : d
17) Which of the following are primitive types?
a) byte
b) String
c) integer
d) Float
Ans : a.
18) What is the range of the char type?
a) 0 to 216
b) 0 to 215
c) 0 to 216-1
d) 0 to 215-1
Ans. D
19) What are primitive data types?
Ans : byte, short, int, long, float, double Boolean, char
double,
20) What are default values of different primitive types?
Ans : int - 0
short - 0
byte - 0
long - 0 l
float - 0.0 f
double - 0.0 d
boolean - false
char – null
21) Converting of primitive types to objects can be explicitly.
a)True
b)False
Ans: b.
22) How do we change the values of the elements of the array?
Ans : The array subscript expression can be used to change the values of the elements of the array.
values
Page 5
6. 23) What is final variable?
Ans : If a variable is declared as final variable, then you cannot change its value. It becomes constant.
24) What is static variable?
Ans : Static variables are shared by all instances of a cl
class.
Operators
1) What are operators and what are the various types of operators available in Java?
Ans: Operators are special symbols used in expressions.
The following are the types of operators:
Arithmetic operators,
Assignment operators,
Increment & Decrement operators,
nt
Logical operators,
Biwise operators,
Comparison/Relational operators and
Conditional operators
2) The ++ operator is used for incrementing and the -- operator is used for decrementing.
a) True
b) False
Ans: a.
3) Comparison/Logical operators are used for testing and magnitude.
cal
a) True
b) False
Ans: a.
4) Character literals are stored as unicode characters.
a) True
b) False
Ans: a.
5) What are the Logical operators?
Ans: OR(|), AND(&), XOR(^) AND NOT(~).
6) What is the % operator?
Ans : % operator is the modulo operator or reminder operator. It returns the reminder of dividing the
first operand by second operand.
Page 6
7. 7) What is the value of 111 % 13?
a) 3
b) 5
c) 7
d) 9
Ans : c.
8) Is &&= a valid operator?
Ans : No.
9) Can a double value be cast to a byte?
o
Ans : Yes
10) Can a byte object be cast to a double value
value?
Ans : No. An object cannot be cast to a primitive value.
11) What are order of precedence and associativity?
Ans : Order of precedence the order in which operators are evaluated in expr
expressions.
Associativity determines whether an expression is evaluated left
left-right or right-left.
12) Which Java operator is right associativity?
Ans : = operator.
13) What is the difference between prefix and postfix of -- and ++ operators?
Ans : The prefix form returns the increment or decrement operation and returns the value of the
increment or decrement operation.
The postfix form returns the current value of all of the expression and then performs the increment or
decrement operation on that value.
14) What is the result of expression 5.45 + "3,2"?
a) The double value 8.6
b) The string ""8.6"
c) The long value 8.
d) The String "5.453.2"
Ans : d
15) What are the values of x and y ?
x = 5; y = ++x;
Ans : x = 6; y = 6
16) What are the values of x and z?
x = 5; z = x++;
Ans : x = 6; z = 5
Page 7
8. Control Statements
1) What are the programming constructs?
Ans: a) Sequential
b) Selection -- if and switch statements
c) Iteration -- for loop, while loop and do
do-while loop
2) class conditional {
public static void main(String args[]) {
n(String
int i = 20;
int j = 55;
int z = 0;
z = i < j ? i : j; // ternary operator
System.out.println("The value assigned is " + z);
}
}
What is output of the above program?
Ans: The value assigned is 20
3) The switch statement does not require a break.
a) True
b) False
Ans: b.
4) The conditional operator is otherwise known as the ternary operator.
a) True
b) False
Ans: a.
5) The while loop repeats a set of code while the condition is false.
a)True
b)False
Ans: b.
6) The do-while loop repeats a set of code atleast once before the condition is tested.
while
a)True
b)False
Ans: a.
7) What are difference between break and continue?
Page 8
9. Ans: The break keyword halts the execution of the current loop and forces control out of the loop. The
continue is similar to break, except that instead of halting the execution of the loop, it starts the next
k,
iteration.
8) The for loop repeats a set of statements a certain number of times until a condition is matched.
a)True
b)False
Ans: a.
9) Can a for statement loop indefintely?
Ans : Yes.
10) What is the difference between while statement and a do statement/
Ans : A while statement checks at the beginning of a loop to see whether the next loop iteration should
occur.
A do statement checks at the end of a loop to see whether the next iteration of a loop should occur. The
do statement will always execute the body of a loop at least once.
Introduction to Classes and Methods
1) Which is used to get the value of the instance variables?
Ans: Dot notation.
2) The new operator creates a single instance named class and returns a reference to that object.
es
a ) True
b) False
Ans: a.
3) A class is a template for multiple objects with similar features.
a) True
b) False
Ans: a.
4) What is mean by garbage collection?
Ans: When an object is no longer referred to by any variable, Java automatically reclaims memory used
nger
by that object. This is known as garbage collection.
5) What are methods and how are they defined?
Ans: Methods are functions that operate on instances of classes in which they are defined.Objects can
communicate with each other using methods and can call methods in other classes.
Method definition has four parts. They are name of the method, type of object or primitive type the
method returns, a list of parameters and the body of t method.
the
Page 9
10. A method's signature is a combination of the first three parts mentioned above.
6) What is calling method?
Ans: Calling methods are similar to calling or referring to an instance variable. These methods are
accessed using dot notation.
Ex: obj.methodname(param1,param2)
.methodname(param1,param2)
7) Which method is used to determine the class of an object?
Ans: getClass( ) method can be used to find out what class the belongs to. This class is defined in the
object class and is available to all objects.
8) All the classes in java.lang package are automatically imported when a program is compiled.
s
a) True
b) False
Ans: a.
9) How can class be imported to a program?
Ans: To import a class, the import k
keyword should be used as shown.
import classname;
10) How can class be imported from a package to a program?
rted
Ans: import java . packagename . classname (or) import java.package name.*;
11) What is a constructor?
Ans: A constructor is a special kind of method that determines how an object is initialized when created.
12) Which keyword is used to create an instance of a class?
yword
Ans: new.
13) Which method is used to garbage collect an object?
Ans: finalize ().
14) Constructors can be overloaded like regular methods.
a) True
b) False
Ans: a.
15) What is casting?
Ans: Casting is bused to convert the value of one type to another.
16) Casting between primitive types allows conversion of one primitive type to another.
a) True
b) False
Page 10
11. Ans: a.
17) Casting occurs commonly between numeric types.
a) True
b) False
Ans: a.
18) Boolean values can be cast into any other primitive type.
a) True
b) False
Ans: b.
19) Casting does not affect the original object or value.
a) True
b) False
Ans: a.
20) Which cast must be used to convert a larger value into a smaller one?
Ans: Explicit cast.
21) Which cast must be used to cast an object to another class?
t
Ans: Specific cast.
22) Which of the following features are common to both Java & C++?
a) The class declaration
b) The access modifiers
c) The encapsulation of data & methods with in objects
d) The use of pointers
Ans: a, b, c.
23) Which of the following statements accurately describe the use of access modifiers within a class
definition?
a) They can be applied to both data & methods
b) They must precede a class's data variables or methods
c) They can follow a class's data variables or methods
ta
d) They can appear in any order
e) They must be applied to data variables first and then to methods
Ans: a, b, d.
24) Suppose a given instance variable has been declared private. Can this instance variable be
variabl
manipulated by methods outside its class?
side
a) yes
b) no
Page 11
12. Ans: b.
25) Which of the following statements can be used to describe a public method?
5)
a) It is accessible to all other classes in the hierarchy
b) It is accessablde only to subclasses of its parent class
c) It represents the public interface of its class
d) The only way to gain access to this method is by calling one of the public class methods
Ans: a, c.
26) Which of the following types of class members can be part of the internal part of a class?
a. Public instance variables
b. Private instance variables
c. Public methods
d. Private methods
Ans: b, d.
27) You would use the ____ operator to create a single instance of a named class.
a. new
b. dot
Ans: a.
28) Which of the following statements correctly describes the relation between an object and the
instance variable it stores?
a. Each new object has its own distinctive set of instance variables
b. Each object has a copy of the instance variables of its class
c. The instance variable of each object is separate from the variables of other objects
he
d. The instance variables of each object are stored together with the variables of other objects
Ans: a, b, c.
29) If no input parameters are specified in a method declaration then the declaration will include __.
a) An empty set of parenthesis
b) The term void
Ans: a.
30) What are the functions of the dot(.) operator?
a. It enables you to access instance variables of any objects within a class
b. It enables you to store values in instance variables of an object
c. It is used to call object methods
d. It is to create a new object
Ans: a, b, c.
31) Which of the following can be referenced by this variable?
a. The instance variables of a class only
Page 12
13. b. The methods of a class only
c. The instance variables and methods of a class
Ans: c.
32) The this reference is used in conjunction with ___methods.
onjunction
a. static
b. non-static
Ans: b.
33) Which of the following operators are used in conjunction with the this and super references?
a. The new operator
b. The instanceof operator
c. The dot operator
Ans: c.
34) A constructor is automatically called when an object is instantiated
cally
a. true
b. false
Ans: a.
35) When may constructor be called without specifying arguments?
a. When the default constructor is not called
b. When the name of the constructor differs from that of the class
c. When there are no constructors for the class
n
Ans: c.
36) Each class in java can have a finalizer method
a. true
b. false
Ans: a.
37) When an object is referenced, does this mean that it has been identified by the finalizer method
for garbage collection?
a. yes
b. no
Ans: b.
38) Because finalize () belongs to the java.lang.Object class, it is present in all ___.
a. objects
b. classes
c. methods
Ans: b.
Page 13
14. 39) Identify the true statements about finalization.
a. A class may have only one finalize method
b. Finalizers are mostly used with simple classes
ostly
c. Finalizer overloading is not allowed
Ans: a, c.
40) When you write finalize() method for your class, you are overriding a finalizer inherited from a
super class.
a. true
b. false
Ans: a.
41) Java memory management mechanism garbage collects objects which are no longer referenced
garbage
a. true
b. false
Ans: a.
42) Are objects referenced by a variable c
candidate for garbage collection when the variable goes out
of scope?
a. yes
b. no
Ans: a.
43) Java's garbage collector runs as a ___ priority thread waiting for __priority threads to relinquish
priority
the processor.
a. high
b. low
Ans: a, b.
44) The garbage collector will run immediately when the system is out of memory
a. true
b. false
Ans: a.
45) You can explicitly drop a object reference by setting the value of a variable whose data type is a
setting
reference type to ___
Ans: null
46) When might your program wish to run the garbage collector?
a. before it enters a compute-intense section of code
intense
b. before it enters a memory-intense section of code
intense
c. before objects are finalized
d. when it knows there will be some idle time
Page 14
15. Ans: a, b, d
47) For externalizable objects the class is solely responsible for the external format of its contents
a. true
b. false
Ans: a
48) When an object is stored, are all of the objects that are reachable from that object stored as well?
objects
a. true
b. false
Ans: a
49) The default__ of objects protects private and trancient data, and supports the __ of the classes
a. evolution
b. encoding
Ans: b, a.
50) Which are keywords in Java?
a) NULL
b) sizeof
c) friend
d) extends
e) synchronized
Ans : d and e
51) When must the main class and the file name coincide?
Ans : When class is declared public.
52) What are different modifiers?
Ans : public, private, protected, default, static, trancient, volatil final, abstract.
volatile,
53) What are access modifiers?
Ans : public, private, protected, default.
54) What is meant by "Passing by value" and " Passing by reference"?
Ans : objects – pass by referrence
Methods - pass by value
55) Is a class a subclass of itself?
Ans : A class is a subclass itself.
56) What modifiers may be used with top
top-level class?
Ans : public, abstract, final.
Page 15
16. 57) What is an example of polymorphism?
a) Inner class
b) Anonymous classes
c) Method overloading
d) Method overriding
Ans : c
Packages and interface
1) What are packages? What is use of packages?
Ans : The package statement defines a name space in which classes are stored.If you omit the package,
the classes are put into the default package.
Signature... package pkg;
Use: * It specifies to which package the classes defined in a file belongs to. * Package is both naming and
a visibility control mechanism.
2) What is difference between importing "java.applet.Applet" and "java.applet.*;"
"java.applet.*;"?
Ans :"java.applet.Applet" will import only the class Applet from the package java.applet
class
Where as "java.applet.*" will import all the classes from java.applet package.
3) What do you understand by package access specifier?
Ans : public: Anything declared as public can be accessed from anywhere
private: Anything declared in the private can’t be seen outside of its class.
ything
default: It is visible to subclasses as well as to other classes in the same package.
4) What is interface? What is use of interface?
Ans : It is similar to class which may contain method’s signature only but not bodies.
Methods declared in interface are abstract methods. We can implement many interfaces on a class
which support the multiple inheritance.
5) Is it is necessary to implement all methods in an interface?
Ans : Yes. All the methods have to be implemented.
ods
6) Which is the default access modifier for an interface method?
Ans : public.
7) Can we define a variable in an interface And what type it should be ?
interface?
Ans : Yes we can define a variable in an interface. They are implicitly fin and static.
final
8) What is difference between interface and an abstract class?
Page 16
17. Ans : All the methods declared ins
inside an Interface are abstract, where as abstract class must have at
here
least one abstract method and others may be concrete or abstract.
In Interface we need not use the keyword abstract for the methods.
ace
9) By default, all programs import the java.lang package.
True/False
Ans : True
10) Java compiler stores the .class files in the path specified in CLASSPATH environmental variable.
True/False
Ans : False
11) User-defined package can also be imported just like the standard packages.
defined
True/False
Ans : True
12) When a program does not want to handle exception, the ______class is used.
Ans : Throws
13) The main subclass of the Exception class is _______ class.
Ans : RuntimeException
14) Only subclasses of ______class may be caught or thrown.
Ans : Throwable
15) Any user-defined exception class is a subclass of the _____ class.
defined
Ans : Exception
16) The catch clause of the user-defined exception class shoul ______ its Base class catch clause.
defined should
Ans: Exception
17) A _______ is used to separate the hierarchy of the class while declaring an Import statement.
Ans : Package
18) All standard classes of Java are included within a package called _____.
Ans : java.lang
19) All the classes in a package can be simultaneously imported using ____.
Ans : *
20) Can you define a variable inside an Interface? If no, why? If yes, how do you define?
define
Ans.: YES. Final and static
Page 17
18. 21) How many concrete classes can you have inside an interface?
Ans.: None
22) Can you extend an interface?
Ans.: Yes
23) Is it necessary to implement all the methods of an interface while implementing the interface?
Ans.: No
24) If you do not implement all the methods of an interface while implementing, what specifier should
, specif
you use for the class ?
Ans.: abstract
25) How do you achieve multiple inheritances in Java?
Ans: Using interfaces.
26) How to declare an interface example?
Ans : access class classname implements interface.
27) Can you achieve multiple interface through interface?
True/False
Ans : True.
28) Can variables be declared in an interface If so, what are the modifiers?
les interface?
Ans : Yes. Final and static are the modifiers can be declared in an interface.
29) What are the possible access modifiers when impl
implementing interface methods?
Ans : public.
30) Can anonymous classes be implemented an interface?
Ans : Yes.
31) Interfaces can’t be extended.
a) True
b) False
Ans : b.
32) Name interfaces without a method?
Ans : Serializable, Cloneble & Remote.
33) Is it possible to use few methods of an interface in a class If yes, how?
hods class?
Ans : Yes. Declare the class as abstract.
Page 18