With this example we shall show you how to create JCheckBoxes in a Java Desktop Application. Checkboxes are very commonly used when we provide the user with a list of choices and we want him to pick as many as he wishes.
To create a JCheckBox you have to:
- Create a number of
JCheckBoxes. - Use
setSelectedmethod to set a check box checked by default. Otherwise the check box will be unchecked. - Use
addmethod to add the checkboxes to the frame.
Let’s see the code snippet that follows:
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | package com.javacodegeeks.snippets.desktop;import java.awt.FlowLayout;import javax.swing.JCheckBox;import javax.swing.JFrame;public class CreateNewJCheckBoxExample extends JFrame { private static final long serialVersionUID = 1L; public CreateNewJCheckBoxExample() { // set flow layout for the frame this.getContentPane().setLayout(new FlowLayout()); JCheckBox checkBox1 = new JCheckBox(); checkBox1.setText("Checkbox 1"); JCheckBox checkbox2 = new JCheckBox("My Checkbox 2"); // add checkboxes to frame add(checkBox1); add(checkbox2); } private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new CreateNewJCheckBoxExample(); //Display the window. frame.pack(); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() {public void run() { createAndShowGUI(); } }); }} |
This was an example on how to create a new JCheckBox.
