package przycisk;
import javax.swing.;
import java.awt.;
import java.awt.event.*;
public class Przycik extends JFrame{
public Przycisk () {
super("Przyciski");
this.setBounds(100,200,300,400);
this.setDefaultCloseOperation(3);
InitComponents();
}
public void InitComponents () {
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
panel.setBackground(Color.YELLOW);
}
});
panel.add(button1);
GroupLayout layout= new GroupLayout(getContentPane ());
this.getContentPane().setLayout(layout);
layout.setHorizontalGroup (
layout.createSequentialGroup()
.addComponent(button1)
.addGroup (
layout.createParallelGroup().addComponent(button2).addComponent(button4)
)
.addComponent(button3)
);
layout.setVerticalGroup(
layout.createSequentialGroup()
.addGroup (
layout.createParallelGroup().addComponent(button1).addComponent(button2).addComponent(button3)
)
.addComponent(button4)
);
this.getContentPane().add(panel);
}
JButton button1=new JButton("1");
JButton button2= new JButton ("2");
JButton button3=new JButton("2");
JButton button4= new JButton("4");
JPanel panel=new JPanel();
public static void main(String[] args) {
new Przycisk().setVisible(true);
}
}