Intro to java
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Java was created in the early 1990s by James Gosling at Sun Microsystems to be a flexible, secure, portable programming language. It was designed to solve problems with C and C++ by allowing applications to run on any device with a Java Virtual Machine (JVM), making "write once, run anywhere" possible. The JVM and Java API provide core functionality that make Java programs safe to download and run cross-platform.
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Java Collection means a single unit of objects. Java Collection framework provides many interfaces (Set, List, Queue, Deque) and classes (ArrayList, Vector, LinkedList, PriorityQueue, HashSet, LinkedHashSet, TreeSet).
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An exception is an unwanted or unexpected event, which occurs during the execution of a program i.e at run time, that disrupts the normal flow of the program’s instructions.
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This document discusses introduction to programming concepts including:
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2. Classifying programming languages as high-level, middle-level, and low-level and providing examples.
3. Describing the system development life cycle (SDLC) process which includes problem analysis, program design, coding, testing, and documentation/maintenance.
Introduction to turbo c
The document discusses Turbo-C code structure and screen output functions like printf. It explains that Turbo-C code includes comments, preprocessor directives, the main function, variable declarations and the program body. It also describes how printf is used to output text to the screen and supports escape sequences like \n for new lines and \" for double quotes. Examples are provided to demonstrate printf and different escape sequences.
Turbo-C Operators
The document contains examples of arithmetic equations and relational/logical equations to evaluate. It shows how parentheses can be used to override order of operations in arithmetic expressions. Not all algebraic statements can be directly used as C expressions, so conversion may be needed. It provides examples of arithmetic equations like 5-8+2*2 and 8+(3/2) to evaluate, as well as relational/logical equations like (5+2)+( -5+5) >= 77 and 1 && 0 || (1 && !0) to solve.
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Intro to java
- 2. OBJECTIVES 1. Outline the history of JAVA 2. Define JAVA 3. Identify the fundamental problems that JAVA solved 4. Generalize the JAVA platform
- 3. INTRODUCTION TO JAVA PROGRAMMING SUN STANFORD UNIVERSITY NETWORKS MICROSYSTEMS GREEN TEAM JAMES GOSLING C and C++ BASED LANGUAGE HOME ENTERTAINMENT CONTROLLER W3 – NETSCAPE NAVIGATOR OAK JAVA “WRITE ONCE RUN ANYWHERE”
- 4. INTRODUCTION TO JAVA PROGRAMMING PROGRAMMING LANGUAGE • FLEXIBILITY • FUNCTIONALITY COMPLEX LANGUAGE • KNOWLEDGE OF C/C++ PROGRAMMING • OBJECT-ORIENTED SOFTWARE DESIGN SOFTWARE DEVELOPMENT KIT AND SPECIAL COMPILER • JAVA PROGRAM CONSISTS OF PIECES CALLED CLASSES
- 5. INTRODUCTION TO JAVA PROGRAMMING • safely download applets • without fear of viral infection or malicious intent SECURITY • Java programs can be dynamically downloaded to all various types of platforms connected to the Internet, • some means of generating portable executable code is needed. • Java accomplishes this through its Java bytecode PORTABILITY
- 6. INTRODUCTION TO JAVA PROGRAMMING THE JAVA VIRTUAL MACHINE (JAVA VM) the base for the Java platform ported onto various hardware-based platforms Microsoft Internet Explorer and Netscape Navigator THE JAVA APPLICATIONS PROGRAMMING INTERFACE (JAVA API) large collection of ready-made software components that provide many useful capabilities The Java API is grouped into libraries (packages) of related components Java Class Library of Java Applications Programming Interface (Java API) – packages used in Java classes