ActionListener

This is interface is used for action events. ActionListener interface extends the EventListener interface. It contains only one method actionPerformed.

void actionPerformed(ActionEvent e)

    Method invoked when an action occurs.

import java.awt.event.*;
import javax.swing.*;

class ActionListenerEx{
 public static void main(String args[]){
  JFrame myFrame = new JFrame("Event Handling Example");
  
  /* Create a button */
  JButton myButton = new JButton("Click Me");
  
  myFrame.setVisible(true);
  myFrame.setSize(250, 250);
  
  /* Add Button to the frame */
  myFrame.add(myButton);
  
  /* Registers the Listeners */
  myButton.addActionListener(new ActionListener(){
   public void actionPerformed(ActionEvent e){
    JOptionPane.showMessageDialog(null, "Some Action performed");
   }
  });
 }
}

When you press the “click me” button below information message will be displayed.

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