A Little Example of import and main:

A Little Example of import and main:

import javax.swing.*;    // all classes from javax.swing public class HelloWorld {  // starts a class  public static void main (String[] args) {  // starts a main method  // in: array of String; out: none (void)  }}•public = can be seen from any package•static = not “part of” an object

Processing and Running HelloWorld:

•javac HelloWorld.java

•Produces HelloWorld.class (byte code)

•java HelloWorld

•Starts the JVM and runs the main method.