Create RadioButton in Java

Create RadioButton in Java:

We can use the Eclipse IDE for this example. If you do not know about it then follow this link- How to Install Eclipse For Java and create a program in it.

A RadioButton is a component that is either selected or deselected, similar to a CheckBox. The difference with RadioButton is that they are associated with a group, and only one radio button in the group can be selected. When a radio button in the group is selected, any other previously selected one in the group is deselected.

Java RadioButton Methods:

String getText( )Returns the text for the RadioButton.
boolean isSelected( )Returns whether or not the button is selected.
void setBackground(Color)Sets the background color.
void setEnabled(boolean)Enables (boolean is true) or disables (boolean is false) the RadioButton.
void setFocusable(boolean)Draws a box around the component if it has focus (boolean is true) or not if the boolean is false.
void setOpaque(boolean)Sets background as transparent (boolean is false) or solid (boolean is true).

Sample Code to Create RadioButton in Java:

radio button in java codeunit
radio button java code


When you select the RadioButton of the corresponding color, it will display that color output in the console window.

java radio button output
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Radiobtn extends JFrame implements ActionListener{
	JRadioButton redButton;
	JRadioButton blueButton;
	JRadioButton blackButton;

		this.setLayout(new FlowLayout());
		redButton = new JRadioButton("red");
		blueButton = new JRadioButton("blue");
		blackButton = new JRadioButton("black");
		ButtonGroup group = new ButtonGroup();
	public void actionPerformed(ActionEvent e) {
		if(e.getSource()==redButton) {
			System.out.println("You have selected Red Color");
		}else if (e.getSource()==blueButton) {
			System.out.println("You have selected Blue Color");
		} else if (e.getSource()==blackButton) {
			System.out.println("You have selected Black Color");

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		new Radiobtn();


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