Source Code : Oval Panel

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Oval Panel

import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridLayout;

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);
    Container content = frame.getContentPane();
    content.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]);
      content.add(panel);
    }

    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}


           
       

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