OvalPanel.java Source code

Introduction

Here is the source code for OvalPanel.java

Source

import java.awt.Color;
import java.awt.Graphics;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class OvalPanel extends JPanel {
    Color color;

    public OvalPanel() {
        this(Color.black);
    }

    public OvalPanel(Color color) {
        this.color = color;
    }

    public void paintComponent(Graphics g) {
        int width = getWidth();
        int height = getHeight();
        g.setColor(color);
        g.drawOval(0, 0, width, height);
    }

    public static void main(String args[]) {
        JFrame frame = new JFrame("Oval Sample");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new GridLayout(2, 2));
        Color colors[] = { Color.RED, Color.BLUE, Color.GREEN, Color.YELLOW };
        for (int i = 0; i < 4; i++) {
            OvalPanel panel = new OvalPanel(colors[i]);
            panel.add(new JButton("asdf"));
            frame.add(panel);
        }
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}