import java.awt.*;
import java.awt.event.*;


@SuppressWarnings("serial")
public class Schiff extends Frame implements ActionListener, WindowListener {

	Button b1;
	Button b2;
	Button b3;
	Button b4;
	Label l1;
	Label l2;
	TextField t1;

	public Schiff() {

		this.setLayout( new GridLayout( 3, 3 ) );
		this.addWindowListener( this );

		b1 = new Button( "Hallo Welt" );
		b2 = new Button( "Wie geht es dir" );
		b3 = new Button( "mir ist langweilig" );
		b4 = new Button( "Aendere Aufschrift" );
		l1 = new Label( "Horst hans Peter" );
		l2 = new Label( "Juergen Hans Detlef" );
		t1 = new TextField( 10 );

		this.add( b1 );
		this.add( b2 );
		this.add( b3 );
		this.add( b4 );
		this.add( l1 );
		this.add( l2 );
		this.add( t1 );

		b1.addActionListener( this );
		b2.addActionListener( this );
		b3.addActionListener( this );
		b4.addActionListener( this );

		this.setSize( 650, 400 );
		//this.setLayout( new FlowLayout() );
		this.setVisible( true );

	}

	public void aendereAufschrift( String s ) {

		b1.setLabel( s );
		b2.setLabel( s );
		b3.setLabel( s );
		l1.setText( s );
		l2.setText( s );

	}

	public void actionPerformed(ActionEvent e) {
		if( e.getSource() == b1 ) {

			b1.setVisible( false );

		}

		if( e.getSource() == b2 ) {

			b2.setVisible( false );

		}

		if( e.getSource() == b3 ) {

			b3.setVisible( false );
			System.exit( 0 );

		}

		if( e.getSource() == b4 ) {

			this.aendereAufschrift( t1.getText() );

		}


	}

	public void windowActivated(WindowEvent e) {
	}
	public void windowClosed(WindowEvent e) {

		System.exit( 0 );

	}
	public void windowClosing(WindowEvent e) {

		System.exit( 0 );

	}
	public void windowDeactivated(WindowEvent e) {
	}
	public void windowDeiconified(WindowEvent e) {
	}
	public void windowIconified(WindowEvent e) {
	}
	public void windowOpened(WindowEvent e) {
	}

}