Java tutorial
import java.awt.BasicStroke; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.FontMetrics; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.geom.Arc2D; import java.awt.geom.Ellipse2D; import java.awt.geom.GeneralPath; import java.awt.geom.Line2D; import java.awt.geom.Rectangle2D; import java.awt.geom.RoundRectangle2D; import javax.swing.JApplet; import javax.swing.JFrame; public class ArcDemo2D extends JApplet { final static BasicStroke wideStroke = new BasicStroke(8.0f); public void init() { setBackground(Color.white); setForeground(Color.white); } public void paint(Graphics g) { Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2.setPaint(Color.gray); int x = 5; int y = 7; g2.setStroke(wideStroke); g2.draw(new Arc2D.Double(x, y, 200, 200, 90, 135, Arc2D.OPEN)); g2.drawString("Arc2D", x, 250); } public static void main(String s[]) { JFrame f = new JFrame(""); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); JApplet applet = new ArcDemo2D(); f.getContentPane().add("Center", applet); applet.init(); f.pack(); f.setSize(new Dimension(300, 300)); f.show(); } }