/**
   * HelloWorld 
   * @model
   */
public class HelloWorld {
    /**
       * @model
       */
}

/* HelloWorld */
public class HelloWorld {
    static String world = "world";
    // ending static String hello = "Hello";
    // beginning
    public static void main (String args []) {

        System.out.println (hello + ", " + world + "!");
    }

}