We would like to know how to draw Polygon.
import java.awt.Graphics; //from w w w .j a v a 2 s. co m import javax.swing.JComponent; import javax.swing.JFrame; class MyCanvas extends JComponent { public void paint(Graphics g) { int[] x = new int[]{100,200,300,400}; int[] y = new int[]{400,300,300,100}; g.drawPolygon (x, y, x.length); } } public class DrawPolygon { public static void main(String[] a) { JFrame window = new JFrame(); window.setBounds(30, 30, 300, 300); window.getContentPane().add(new MyCanvas()); window.setVisible(true); } }