Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class Main extends JFrame {
    public Main() {
        this.setSize(400, 100);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLayout(new FlowLayout(FlowLayout.CENTER));
        JButton button = new JButton("Change Frame Color");
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                Component component = (Component) e.getSource();
                JFrame frame = (JFrame) SwingUtilities.getRoot(component);
                frame.getContentPane().setBackground(Color.RED);
            }
        });
        this.getContentPane().add(button);
    }

    public static void main(String[] args) {
        new Main().setVisible(true);
    }
}