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OOPS Concepts, Java Evolution, Class Object basic, Class Object Constructor overloading, Inheritance, Array and String, Final Abstract class and interfaces, Exceptions, Streams, GUI Applications, Applet Programming, Network Programming and Java Sockets, Multi Threading
This slide is based on Object Oriented Programming Language. Here is some details about object and class. You can easily understand about object and class.
Core java training in Bangalore is one the best Training in Entire bangalore, Where you can learn Java in Shorter time. TIB Academy is the platform where you gain all you confidence back.
OOPS Concepts, Java Evolution, Class Object basic, Class Object Constructor overloading, Inheritance, Array and String, Final Abstract class and interfaces, Exceptions, Streams, GUI Applications, Applet Programming, Network Programming and Java Sockets, Multi Threading
This slide is based on Object Oriented Programming Language. Here is some details about object and class. You can easily understand about object and class.
Chapter 02: Classes Objects and Methods Java by Tushar B KuteTushar B Kute
The lecture was condcuted by Tushar B Kute at YCMOU, Nashik through VLC orgnanized by MSBTE. The contents can be found in book "Core Java Programming - A Practical Approach' by Laxmi Publications.
Collection Framework in Java | Generics | Input-Output in Java | Serializatio...Sagar Verma
Collection Framework in Java,Generics,Input-Output in Java,Serialization,Inner Classes
Collection Framework in Java
The Collections Framework - Set Interface- List Interface - Map Interface - Queue Interface -Sorting collections using utility methods
equals () and hash Code contract in Java collections
Overriding equals and hash Code methods in Java
Generics
Generics for Collections, class and methods
Input-Output in Java
What is a stream? ,Bytes vs. Characters, Java IO API ,Reading a file; writing to a file using various APIs
Reading User input from console , PrintWriter Class
Serialization
Object Serialization , Serializable Interface , De-Serializable
Inner Classes
Inner Classes ,Member Classes, Local Classes, Anonymous Classes, Static Nested Classes
oops concept in java | object oriented programming in javaCPD INDIA
object oriented programming is a key concept for the development of application in windows as well as web based application environment. oops concept maps real world through its concept of classes, objects, inheritance, polymorphism which help in making a robust application.
OOPS in java | Super and this Keyword | Memory Management in java | pacakages...Sagar Verma
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Chapter 02: Classes Objects and Methods Java by Tushar B KuteTushar B Kute
The lecture was condcuted by Tushar B Kute at YCMOU, Nashik through VLC orgnanized by MSBTE. The contents can be found in book "Core Java Programming - A Practical Approach' by Laxmi Publications.
Collection Framework in Java | Generics | Input-Output in Java | Serializatio...Sagar Verma
Collection Framework in Java,Generics,Input-Output in Java,Serialization,Inner Classes
Collection Framework in Java
The Collections Framework - Set Interface- List Interface - Map Interface - Queue Interface -Sorting collections using utility methods
equals () and hash Code contract in Java collections
Overriding equals and hash Code methods in Java
Generics
Generics for Collections, class and methods
Input-Output in Java
What is a stream? ,Bytes vs. Characters, Java IO API ,Reading a file; writing to a file using various APIs
Reading User input from console , PrintWriter Class
Serialization
Object Serialization , Serializable Interface , De-Serializable
Inner Classes
Inner Classes ,Member Classes, Local Classes, Anonymous Classes, Static Nested Classes
oops concept in java | object oriented programming in javaCPD INDIA
object oriented programming is a key concept for the development of application in windows as well as web based application environment. oops concept maps real world through its concept of classes, objects, inheritance, polymorphism which help in making a robust application.
OOPS in java | Super and this Keyword | Memory Management in java | pacakages...Sagar Verma
OOPS and its application in Java, Super class AND This Keyword,Java Bean, POJO ,Memory management in Java ,Packages ,Miscellaneous (Var-Args, toString(), Double equals operator(==))
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How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
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2. Core Java Syllabus
A First Look
A Simple Java Class
Java’s “Hello World” Program
Java Basics
Language and Platform Features
Program Life Cycle
The Java SE Development Kit (JDK)
3. Class and Object Basics
The Object Model and Object-Oriented Programming
Classes, References, and Instantiation
Adding Data to a Class Definition
Adding Methods (Behavior)
More on Classes and Objects
Accessing data, the “this” variable
Encapsulation and Access Control, public and private
Access
Constructors and Initialization
static Members of a Class
Scopes, Blocks, References to Objects
4. Flow of Control[briefly due to attendee
experience]
Branching: if, if-else, switch
Iteration: while, do-while, for, break, continue
Strings and Arrays
String, StringBuffer, StringBuilder
Arrays, Primitive Arrays, Arrays of Reference Types
varargs
5. Packages
Package Overview – Using Packages to Organize Code
import statements
Creating Packages, package Statement, Required
Directory Structure
Finding Classes, Packages and Classpath
Composition and Inheritance
Using Composition to Deal With Complexity
Composition/HAS-A, Delegation
Using Inheritance and Polymorphism to share commonality
IS-A, extends, Inheriting Features, Overriding Methods,
Using Polymorphism
Class Object
Abstract Classes
6. Advanced Stream Techniques
Buffering
Data Streams
Push-Back Parsing
Byte-Array Streams and String Readers and Writers
Java Serialization
The Challenge of Object Serialization
Serialization API, Serializable Interface
ObjectInputStream and ObjectOutputStream
The Serialization Engine
Transient Fields
readObject and writeObject
Externalizable Interface
7. Interfaces
Using Interfaces to Define Types
Interfaces and Abstract Classes
Exceptions
Exceptions and the Exception Hierarchy
try and catch
Handling Exceptions
Program Flow with Exceptions
Finally
8. Java Collections and Generics
The Collections Framework and its API
Collections and Java Generics
Collection, Set, List, Map, Iterator
Autoboxing
Collections of Object (non-generic)
Using ArrayList, HashSet, and HashMap
for-each Loop
Processing Items With an Iterator
More About Generics
9. The Java Streams Model
Delegation-Based Stream Model
InputStream and OutputStream
Media-Based Streams
Filtering Streams
Readers and Writers
Working with Files
File Class
Modeling Files and Directories
File Streams
Random-Access Files
10. Comments are almost like C++
• The javadoc program generates HTML API
documentation from the “javadoc” style comments in
your code.
/* This kind comment can span multiple lines */
// This kind is of to the end of the line
/* This kind of comment is a special
* ‘javadoc’ style comment
*/
11. JAVA Classes
• The class is the fundamental concept in JAVA (and other
OOPLs)
A class describes some data object(s), and the
operations (or methods) that can be applied to those
objects
Every object and method in Java belongs to a class
Classes have data (fields) and code (methods) and
classes (member classes or inner classes)
Static methods and fields belong to the class itself Others
belong to instances
•
•
•
•
•
12. An example of a class
class Person {
String name;
int age;
Variable
Method
void birthday ( )
{
age++;
System.out.println (name + '
is now ' + age);
}
}
13. Scoping
As in C/C++, scope is determined by the placement of curly braces {}.
A variable defined within a scope is available only to the end of that scope.
{ int x = 12;
/* only x available */
{ int q = 96;
/* both x and q available */
}
/* only x available */
/* q “out of scope” */
}
{ int x = 12;
{ int x = 96; /* illegal */
}
}
This is ok in C/C++ but not in Java.
14. Scope of Objects
• Java objects don’t have the same lifetimes as
primitives.
• When you create a Java object using new, it
hangs around past the end of the scope.
• Here, the scope of name s is delimited by the {}s
but the String object hangs around until GC’d
{
String s = new String("a string");
} /* end of scope */
15. The static
keyword•
•
•
Java methods and variables can be declared static
These exist independent of any object
This means that a Class’s
–static methods can be called even if no objects of that
class have been created and
–static data is “shared” by all instances (i.e., one rvalue
per class instead of one per instance
class StaticTest {static int i = 47;} StaticTest st1 = new StaticTest();
StaticTest st2 = new StaticTest();
// st1.i == st2.I == 47
StaticTest.i++; st2.I+
+
// st1.i == st2.I == 48
// or st1.I++ or
16. Example
public class Circle {
// A class field
public static final double
PI= 3.14159; constant
// A class method: just
compute a value
// A useful
based on thearguments
public static double
radiansToDegrees(double rads) { return rads *
180 / PI;
}// An instance field
public double r;
circle
// Two methodswhich
an object
// The radius of the
operate on
{
the instance
// Compute
fields of
the area of
public double
the circle
return PI *
area()
r * r;}
public
double
circumference() { // Compute the
circumference of the circle
return 2 * PI * r;
}
}
17. Array Operations
• Subscripts always start at 0 as in C
• Subscript checking is done automatically
• Certain operations are defined on arrays
of objects, as for other classes
– e.g. myArray.length == 5
18. An array is an object
NSIT ,Jetalpur
• Person mary = new Person ( );
• int
• int
myArray[
myArray[
] = new
] = {1, 4, 9,
16,
int[5];
25};
• String languages [ ] = {"Prolog", "Java"};
•
•
Since arrays are objects they are allocated dynamically
Arrays, like all objects, are subject to garbage collection
when no more references remain
– so fewer memory leaks
– Java doesn’t have pointers!
20. Echo.java
•
•
•
•
•
•
•
•
•
C:UMBC331java>type echo.java
// This is the Echo example from the Sun
tutorial class echo {
public static void main(String args[]) { for (int i=0;
i < args.length; i++) { System.out.println( args[i] );
}
}
}
• C:UMBC331java>javac echo.java
•
•
•
•
•
C:UMBC331java>java echo this is pretty silly
this
is pretty
silly
21. Factorial Example
/* This program computes the factorial of a number
*/
public class Factorial {
public static void
main(String[] args) { here
int input =
Integer.parseInt(args[0]); input
double result =
factorial(input); factorial
System.out.println(result); result
}
ends here
// Define a class
// The program
starts
// Get the user's
// Compute the
// Print out the
// The main() method
public static double
computes x!
if (x <
0) return 0.0;
double fact =
1.0; initial value
factorial(int x) { // This method
// Check for bad input
// if bad,
return 0
// Begin with an
while(x > 1)
{ fact = fact *
x;
each time
// Loop until
// multiply
x equals
by x
// and then
22. Constructors
• Classes should define one or more methods to create
or construct instances of the class
• Their name is the same as the class name
– note deviation from convention that methods begin with
lower case
• Constructors are differentiated by the number and
types of their arguments
– An example of overloading
• If you don’t define a constructor, a default one will be
created.
• Constructors automatically invoke the zero argument
constructor of their superclass when they begin (note
that this yields a recursive process!)
23. Methods, arguments and
return values
Java methods are like C/C++ functions.
General case:
returnType methodName ( arg1, arg2, … argN)
{
methodBody
}
•
The return keyword exits a method optionally with a value
int storage(String s) {return s.length() * 2;}
boolean flag() { return true; }
float naturalLogBase() { return
2.718f; } void nothing() {
return; }
void nothing2() {}