java intro

1. Java
• Platform Independence
• Bytecodes
• JDK and JVM
• Java compilation process
• Object code
1. Generated by any translator such as compiler
2. Can consist of bytecodes, machine code or both
• Ordinary/Traditional compilation process
• Features of java: Simple, Secure, Portable, Plateform Independent,
Robust(stong memory management) etc
• Type of java programs
• Applications
• Applets: It is a small programs developed for internet applications

2. Java
Parts of java program
/*
This program demonstrates
Parts of a java program
*/
public class FirstProgram
{
public static void main(String[] args)
{
// Display message.
System.out.println(“Hello World!”);
}
}

3. Java
• Blue J
• Writing, Compiling and Running
Source Code compiler Byte Codes Interpreter
Machine
Code