Java tutorial
import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Arc2D; import javax.swing.JComponent; import javax.swing.JFrame; class MyCanvas extends JComponent { public void paint(Graphics g) { Graphics2D g2 = (Graphics2D) g; //Draw the open arc Arc2D.Float arc = new Arc2D.Float(Arc2D.OPEN); arc.setFrame(140, 100, 67, 46); arc.setAngleStart(45); arc.setAngleExtent(270); g2.setColor(Color.gray); g2.draw(arc); g2.setColor(Color.green); g2.fill(arc); g2.setColor(Color.black); g2.drawString("Arc2D.OPEN", 140, 90); } } public class Graphics2DDrawArcOPEN { public static void main(String[] a) { JFrame window = new JFrame(); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); window.setBounds(30, 30, 300, 300); window.getContentPane().add(new MyCanvas()); window.setVisible(true); } }