package mx.edu.uam.practica1;

/**
 *
 * @author juanmanuel
 */
public class ProgramaPrincipal {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("Hola Mundo En UAM-I");
    }
    
}

package mx.edu.uam.practica1;

/**
 *
 * @author juanmanuel
 */
public class ProgramaPrincipal {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("Hola Mundo En UAM-I, Java OCA");
    }
    
}

Modifica mensaje de Hola Mundo