import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
public class MainClass extends JFrame {
JTextField field = new JTextField();
public static void main(String[] args) {
MainClass st = new MainClass();
}
public SwingTest() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton button = new JButton("Press me");
button.addActionListener(new ButtonListener());
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add(button, BorderLayout.SOUTH);
this.getContentPane().add(field, BorderLayout.NORTH);
this.pack();
this.setVisible(true);
}
class ButtonListener implements ActionListener {
boolean toggle = true;
public void actionPerformed(ActionEvent e) {
if (toggle)
field.setText("Simple");
else
field.setText("Sample");
toggle = !toggle;
}
}
}