import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
/*in main*/
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println('x');
}
});import java.awt.event.ActionListener; //For action listener
import javax.swing.*; //For JButton
// Inside of function or method
JButton button = new JButton();
button.addActionListener(e -> {
System.out.println("Another way of writing an action listener.");
})import javax.swing.*;
import java.awt.event.*;
public class JButtonExample
{
public static void main(String[] args)
{
JFrame frame = new JFrame("ActionListener Example");
JButton btn = new JButton("Click here");
btn.setBounds(70,80,100,30);
//Change button text on click
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
btn.setText("OK");
}
});
frame.add(btn);
frame.setSize(250,250);
frame.setLayout(null);
frame.setVisible(true);
}
}button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent actionEvent)
{
}
});public void actionPerformed(ActionEvent e) {
if(e.getSource()==button) {
button.setText("Button Clicked!");
}}