Set JCheckBox Label using JTextField

Output:

Code:

/**

 * File: changeJCheckBoxLabel.java

 * Tiltle: Set JCheckBox Label using JTextField

 * Author: http://java-code-complete.blogspot.com

 */



//Java Core Package

import javax.swing.*;

//Java Extension Package

import java.awt.*;

import java.awt.event.*;



public class changeJCheckBoxLabel extends JFrame {

 

 //Initializing JTextField and JCheckBox

 private JTextField field;

 private JCheckBox box;



 //Setting up GUI

    public changeJCheckBoxLabel() {

     

     //Setting up the Title of the Window

     super("Set JCheckBox Label using JTextField");



     //Set Size of the Window (WIDTH, HEIGHT)

     setSize(310,90);



     //Exit Property of the Window

     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



     //Constructing JTextField and JCheckBox

     field = new JTextField("Enter Text Here...",25);

     box = new JCheckBox("Default Label",true);



     //Setting up the container ready for the components to be added.

     Container pane = getContentPane();

     setContentPane(pane);

     

     //Setting up the container layout

     FlowLayout flow = new FlowLayout(FlowLayout.CENTER);

     pane.setLayout(flow);

     

     //Implemeting Even-Listener on JTextField's reference name "field" using ActionListener

  field.addActionListener(

  new ActionListener() {

   

   //Handle JTextField event if Enter key is pressed

   public void actionPerformed(ActionEvent event) {

    

    //Setting JCheckBox label using JTextField

    box.setText(field.getText());

    

    //The JTextField will be empty after Enter key is pressed ready for the next input.

    field.setText(null);

   }

  }

  );



     //Adding the JTextField and JCheckBox components to the container

     pane.add(field);

     pane.add(box);



     /**Set all the Components Visible.

      * If it is set to "false", the components in the container will not be visible.

      */

     setVisible(true);

    }

    

 //Main Method

    public static void main (String[] args) {

     changeJCheckBoxLabel cjcb = new changeJCheckBoxLabel();

 }

}

Important Part of the Program:

//Implemeting Even-Listener on JTextField's reference name "field" using ActionListener

  field.addActionListener(

  new ActionListener() {

   

   //Handle JTextField event if Enter key is pressed

   public void actionPerformed(ActionEvent event) {

    

    //Setting JCheckBox label using JTextField

    box.setText(field.getText());

    

    //The JTextField will be empty after Enter key is pressed ready for the next input.

    field.setText(null);

   }

  }

  );