Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.FlowLayout;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;

public class Main {
    public static void main(String[] args) {

        JRadioButton button1 = new JRadioButton("Red");
        JRadioButton button2 = new JRadioButton("Green");
        JRadioButton button3 = new JRadioButton("Blue");
        ButtonGroup colorButtonGroup = new ButtonGroup();
        colorButtonGroup.add(button1);
        colorButtonGroup.add(button2);
        colorButtonGroup.add(button3);
        button1.setSelected(true);

        JFrame frame = new JFrame();
        frame.setLayout(new FlowLayout());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.add(new JLabel("Color:"));
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.pack();
        frame.setVisible(true);
    }
}