/*
 *
 * HelloWorld1.java

      Class names and file name must be the same
      Compiler 'javac HelloWorld1.java' creates HelloWorld1.class
      Interpreter  'java HelloWorld1'    executes HelloWorld1
 *
 */
import java.io.*; // For System.out

public class HelloWorld1 {
  
  // Excecution of all Java Applications begin at Method main
  // Can have main in all class files, but only executed class invokes main
  public static void main( String[] args )  {
		System.out.println( "Hello world" );
         	}
}