Home | Ajax | BioInformatics | Dojo | EAI | EJB | Hibernate | J2ME | Java | Java Glossary | Java Servlets | JavaScript | Jboss | JDBC | JDO | Jmeter | JSF | JSP | JUnit | Maven | MySQL | Spring Framework | SQL | Struts | Technology | WAP | Web Services | XML
 
 
Search All Tutorials
  

 
Programming Tutorials: Ajax | Articles | JSP | Bioinformatics | Database | Free Books | Hibernate | J2EE | J2ME | Java | JavaScript | JDBC | JMS | Linux | MS Technology | PHP | RMI | Web-Services | Servlets | Struts | UML
 
Java
  JDO Tutorials
  EAI Articles
  Struts Tutorials
  Java Tutorials
  Java Certification
  Java Applet
Questions
Comments

Changing the Label of a JButton Component in Java

                         

This section illustrates you how to change the label of a button in java swing. JButton is the component of javax.swing.*; package.

The following program helps you to change the label of the button. In this program, the label of the button is changed from "Click Me" to "Roseindia.net" and vice versa whenever you click on the button as shown below:

     Before:
Button Without change the label.

    After:
Changed label of the button.

In this program, addActionListener() method has been added to the button to register the action listener and then if you click on the button, the generated action event is captured in the actionPerformed(ActionEvent e) method. In the actionPerformed(ActionEvent e){ we check the label of the button. If the label of the button is "Roseindia.net", it will change the button label to "Click Me" otherwise it will change the label to "Roseindia.net".

setText(String):
Above method sets the label of the button.

Here is the code of the program:

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

public class ChangeButtonLabel{
  JButton button;
  public static void main(String[] args){
    ChangeButtonLabel cl = new ChangeButtonLabel();
  }

  public ChangeButtonLabel(){
    JFrame frame = new JFrame("Change JButton Lebel");
    button = new JButton("Click Me");
    button.addActionListener(new MyAction());
    frame.add(button);
    frame.setSize(400400);
    frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }

  public class MyAction implements ActionListener{
    public void actionPerformed(ActionEvent e){
      String text = (String)e.getActionCommand();
      if (text.equals("Click Me")){
        button.setText("Roseindia.net");
      }
      else{
        button.setText("Click Me");
      }
    }
  }
}

Download this example.

                         

Facing Programming Problem?
Add This Tutorial To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 

Current Comments

4 comments so far (post your own) View All Comments Latest 10 Comments:

Please tell me How can I set the position of a button on a frame?

Posted by Jyoti on Tuesday, 05.6.08 @ 18:53pm | #58642

Hi! Great lesson.

I'm wondering how to change the text of a button and menu option simultaneously by changing the associated Action object. I tried by changing the NAME property of the associated Action, but that didn't seem to work.

Thanks!
Orion

Posted by Orion Carrier on Monday, 02.11.08 @ 22:46pm | #47929

This website helped us a lot while doing our projects. i wish ur service continues...

Posted by Tamil on Friday, 01.25.08 @ 15:49pm | #46127

"ChangButtonLabel cl = new ChangButtonLabel();" should be ChangeButtonLabel cl = new ChangeButtonLabel();


thanks for your lessons...

Posted by bora ciner on Thursday, 12.7.06 @ 15:59pm | #593

Leave your comment:

Name:

Email:

URL:

Title:

Comments:


Enter Code:

 

Note: Emails will not be visible or used in any way, and are not required. Please keep comments relevant. Any content deemed inappropriate or offensive may be edited and/or deleted.

No HTML code is allowed. Line breaks will be converted automatically. URLs will be auto-linked. Please use BBCode to format your text.

Hot Web Programming Job

Java String toLowerCase Example
Java String toCharArray Example
Java String substring Example
Java String indexOf Example
Java String startsWith Example
Java String hashCode Example
Java String matches Example
Java String length Example
Java String lastIndexOf Example
Java String isEmpty Example
Java String equalsIgnoreCase Example
Java String equals Example
Java String endsWith Example
Java String copyValueOf Example
Java String contentEquals Example
  EAI Articles
  Java Certification
Tell A Friend
Your Friend Name
Search Tutorials

 

 
 
Browse all Java Tutorials
Java JSP Struts Servlets Hibernate XML
Ajax JDBC EJB MySQL JavaScript JSF
Maven2 Tutorial JEE5 Tutorial Java Threading Tutorial Photoshop Tutorials Linux Technology
Technology Revolutions Eclipse Spring Tutorial Bioinformatics Tutorials Tools SQL
 

Home | JSP | EJB | JDBC | Java Servlets | WAP  | Free JSP Hosting  | Search Engine | News Archive | Jboss 3.0 tutorial | Free Linux CD's | Forum | Blogs

About Us | Advertising On RoseIndia.net  | Site Map

India News

Indian Software Development Company

Send your comments, Suggestions or Queries regarding this site at roseindia_net@yahoo.com.

Copyright © 2007. All rights reserved.