how to add shapes onto JFrame
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class SimpleDrawing extends JFrame {
public SimpleDrawing() {
setSize(new Dimension(500, 500));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public void paint(Graphics g) {
g.setColor(Color.red);
g.fillOval(20, 50, 100, 100);
g.setColor(Color.blue);
g.fillRect(100, 100, 100, 200);
}
public static void main(String arg[]) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
new SimpleDrawing();
}
});
}