MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class MainClass {
    public static void main(String args[]) {
        JFrame f = new JFrame("JOptionPane Sample");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JButton button = new JButton("Ask");
        ActionListener actionListener = new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Component source = (Component) actionEvent.getSource();
                Object response = JOptionPane.showInputDialog(source, "Choose One?", "JOptionPane Sample",
                        JOptionPane.QUESTION_MESSAGE, null, new String[] { "A", "B", "C" }, "B");
                System.out.println("Response: " + response);
            }
        };
        button.addActionListener(actionListener);
        f.add(button, BorderLayout.CENTER);
        f.setSize(300, 200);
        f.setVisible(true);
    }
}