Explain the four types of swing buttons with demonstration program

Explain the four types of swing buttons with demonstration program

Answer:-

Types of Swing Buttons

1. JButton – A standard push button.
2. JToggleButton – A button that can be toggled ON/OFF.
3. JCheckBox – Allows multiple selections; checkbox-style button.
4. JRadioButton – Allows single selection within a group.

All are part of the javax.swing package.

Java Swing Program Demonstrating All Four Buttons

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

public class SwingButtonsDemo {
    public static void main(String[] args) {
        // Create JFrame
        JFrame frame = new JFrame("Swing Button Types");
        frame.setSize(400, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new FlowLayout());

        // 1. JButton
        JButton jButton = new JButton("Click Me");
        jButton.addActionListener(e -> JOptionPane.showMessageDialog(frame, "JButton clicked"));

        // 2. JToggleButton
        JToggleButton toggleButton = new JToggleButton("Toggle Me");
        toggleButton.addItemListener(e -> {
            if (toggleButton.isSelected()) {
                toggleButton.setText("ON");
            } else {
                toggleButton.setText("OFF");
            }
        });

        // 3. JCheckBox
        JCheckBox checkBox = new JCheckBox("I agree");
        checkBox.addItemListener(e -> {
            String status = checkBox.isSelected() ? "Checked" : "Unchecked";
            System.out.println("Checkbox is " + status);
        });

        // 4. JRadioButton (Grouped)
        JRadioButton radio1 = new JRadioButton("Option A");
        JRadioButton radio2 = new JRadioButton("Option B");
        ButtonGroup group = new ButtonGroup();
        group.add(radio1);
        group.add(radio2);

        // Add buttons to frame
        frame.add(jButton);
        frame.add(toggleButton);
        frame.add(checkBox);
        frame.add(radio1);
        frame.add(radio2);

        // Display the frame
        frame.setVisible(true);
    }
}

How it works:

• JButton: Performs an action when clicked.
• JToggleButton: Changes state between ON and OFF.
• JCheckBox: Can be selected or unselected independently.
• JRadioButton: Only one in a group can be selected at a time.