Java Code:
import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class DrawRectPanel extends JPanel {
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.setColor(Color.blue);
    g.drawRect(10, 10, 80, 30);
    g.drawRoundRect(100, 10, 80, 30, 15, 15);

    int thickness = 4;

    for (int i = 0; i <= thickness; i++)
      g.draw3DRect(200 - i, 10 - i, 80 + 2 * i, 30 + 2 * i, true);
    for (int i = 0; i < thickness; i++)
      g.draw3DRect(200 - i, 50 - i, 80 + 2 * i, 30 + 2 * i, false);

    g.drawOval(10, 100, 80, 30);
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setTitle("DrawRect");
    frame.setSize(300, 200);
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    Container contentPane = frame.getContentPane();
    contentPane.add(new DrawRectPanel());

    frame.show();
  }
}