Items with the same ActionListener

With this tutorial we are going to show you how to create several items with the same ActionListener. This is very useful when you want a number of components to behave in the same way under the occurrence of certain events.

It’s very easy to add this kind of functionality in your Application. You simply:

• Create the items you want
• Create a class that implements ActionListener interface and override the actionPerfomed method.
• And then just use the addActionListener method of each component to bundle them with the ActionListener you’ve created.

Let’s take a look at the code:

package com.javacodegeeks.snippets.desktop;

import java.awt.Button;
import java.awt.Frame;
import java.awt.Menu;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ReuseListener extends Frame {

    public ReuseListener() {

  Button button = new Button("Open");

  add(button);

  MenuBar menuBar = new MenuBar();

  setMenuBar(menuBar);

  Menu menu = new Menu("Menu");

  menuBar.add(menu);

  MenuItem menuItem = new MenuItem("Open");

  menu.add(menuItem);

  ActionListener saver = new ActionListener() {

@Override

public void actionPerformed(ActionEvent event) {

    System.out.println("Opening...");

}

  };

  // Register the actionListener with button

  button.addActionListener(saver);

  // And now register the same actionListener with menuItem

  menuItem.addActionListener(saver);

  pack();
    }

    private static void showUi() {

  ReuseListener reuseListener = new ReuseListener();

  reuseListener.setVisible(true);

    }

    public static void main(String[] a) {

  javax.swing.SwingUtilities.invokeLater(new Runnable() {

@Override

public void run() {

    showUi();

}

  });

    }
}

 
This was an example now how to create Items with the same ActionListener in Java.