This document provides an introduction to the Java programming language. It discusses what Java is, its purpose, and how it is used. It then covers basic Java syntax and walks through building a simple "Hello World" program as an example. The program is compiled using javac and then executed using java to output the text "Hello Internet".

1. PROGRAMMING IN JAVA
UNIT 1
Ms. V.VENNILA
Assistant Professor
Department of Information Technology
Bon Secours College For Women, Thanjavur

2. What is JAVA

3. Purpose of JAVA

4. How JAVA is used

5. JAVA Basic Syntax

6. Let us Try Out
Building your first Java Program

7. Hello Internet
// hello.java: Hello Internet program
class HelloInternet
{
public static void main(String args[])
{
System.out.println(“Hello Internet”);
}
}

8. Program Processing
 Compilation
# javac hello.java
results in HelloInternet.class
 Execution
# java HelloInternet
Hello Internet
#