// purpose: demonstrate that if an object is changed all variables referring
// to the object see the change; that is, none remember its prior contents

import javax.swing.*;

public class TwoObjectsThreeVariables {

    // method main(): program starting point
    public static void main( String[] args ) {

        JFrame w1 = new JFrame( "I call myself eeny" );
        w1.setSize( 250, 150 );
        w1.setVisible( true );

        Pause.untilReady();

        JFrame w2 = new JFrame( "I call myself meeny" );
        w2.setSize( 250, 150 );
        w2.setVisible( true );

        Pause.untilReady();

        JFrame w3 = w1;    // variables w1 and w3 see the same object

        Pause.untilReady();

        System.out.println ( "Title of the window w1 sees: " + w1.getTitle() );
        System.out.println ( "Title of the window w2 sees: " + w2.getTitle() );
        System.out.println ( "Title of the window w3 sees: " + w3.getTitle() );

        Pause.untilReady();

        w3.setTitle( "I call myself zambini" );

        Pause.untilReady();

        System.out.println ( "Title of the window w1 sees: " + w1.getTitle() );
        System.out.println ( "Title of the window w2 sees: " + w2.getTitle() );
        System.out.println ( "Title of the window w3 sees: " + w3.getTitle() );

    }
}