import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JPanel;


public class PanelZPrzyciskami extends JPanel implements ActionListener {

/**
	 *
	 */

public static final int HEIGHT = 200;
public static final int WIDTH = 350;
private JButton Button1;
private JButton Button2;
private JButton Button3;
private JButton Button4;

public PanelZPrzyciskami (){
Button1 = new JButton ("Zielony");
Button2 = new JButton ("Niebieski");
Button3 = new JButton ("Żółty");
Button4 = new JButton ("Zmienny");

Button1.addActionListener(this);
Button2.addActionListener(this);
Button3.addActionListener(this);
Button4.addActionListener(this);



setLayout (new FlowLayout());
setPreferredSize (new Dimension (WIDTH, HEIGHT));
add (Button1);
add (Button2);
add (Button3);
add (Button4);
}



@Override
public void actionPerformed(ActionEvent e) {
	Object source = e.getSource();
	if (source == Button4)
	if(Button4.getText() == "Rozmiar") do
	{	Button4.setText("Kolor");
	if (source==Button1)
		Button1.setSize(100, 100);
	else if (source==Button2)
		Button2.setSize(100, 100);
	else if (source == Button3)
		Button3.setSize(100, 100);}

	//public void actionPerformed1(ActionEvent f) {
		//Object source = f.getSource();

		if (source == Button4)
			if(Button4.getText() == "Kolor")
			Button4.setText("Rozmiar");
		if (source==Button1)
			Button1.setBackground(Color.GREEN);
		else if (source==Button2)
			Button2.setBackground(Color.BLUE);
		else if (source == Button3)
			Button3.setBackground(Color.YELLOW);

			}
}}


	//public static void main(String[] args) {






import javax.swing.JFrame;


public class okno1 extends JFrame {

	public okno1(){
		super ("Not Hello World");

		PanelZPrzyciskami panel_z_przyciskami = new PanelZPrzyciskami();
				add (panel_z_przyciskami);
				setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		pack();
		setVisible(true);
	}
	/**
	 * @param args
	 */
	//public static void main(String[] args) {
		// TODO Auto-generated method stub



}



public class Test2 {


	public static void main(String[] args) {

new okno1();
	}

}