Give an example of a program that creates a Swing based GUI with at least one button, one group of radio-buttons and several t

Give an example of a program that creates a Swing based GUI with at least one button, one group of radio-buttons and several textfields. Some of the textfields should be for input and others for output. Make the output textfields uneditable. When the button is clicked, the input fields should be read, some calculation will be performed and the result will be displayed in the output textfield(s).

For example, the GUI may have an input textfield for circle radius, an output textfiled for result, a button Calculate and a group of two radio buttons: Area and Perimeter. When Calculate button is clicked, the radius value is read and the area or perimeter is calculated and displayed in the result based on the active radio-button.

Expert Answer


import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.ButtonGroup;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JRadioButton;

import javax.swing.JTextField;

import javax.swing.SwingUtilities;

public class CalculateCirlceGUI extends JFrame {




private static final long serialVersionUID = 1200596029840561525L;

JTextField field1 = new JTextField(3);

JLabel label = new JLabel(“Enter the Circle Radius:”);

JLabel label1 = new JLabel();

JButton button = new JButton(“Calculate”);

JRadioButton option1 = new JRadioButton(“Area”);

JRadioButton option2 = new JRadioButton(“Perimeter”);

public CalculateCirlceGUI() {

super(“Swing JRadioButton Demo”);

ButtonGroup group = new ButtonGroup();



button.addActionListener(new ActionListener() {


public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if (option1.isSelected()) {

int r = Integer.parseInt(field1.getText());

label1.setText(“” + (Math.PI * r * r));

} else if (option2.isSelected()) {

int r = Integer.parseInt(field1.getText());

label1.setText(“” + (2 * Math.PI * r));

} else {

label1.setText(“Please select area or perimeter”);




setLayout(new FlowLayout());







setSize(210, 200);


public static void main(String[] args) {

SwingUtilities.invokeLater(new Runnable() {


public void run() {

new CalculateCirlceGUI().setVisible(true);






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