//******************************************************************** // RocketPanel.java Author: Lewis/Loftus // // Demonstrates the use of polygons and polylines. //******************************************************************** import javax.swing.JPanel; import java.awt.*; public class RocketPanel extends JPanel { private int[] xRocket = {100, 120, 120, 130, 130, 70, 70, 80, 80}; private int[] yRocket = {15, 40, 115, 125, 150, 150, 125, 115, 40}; private int[] xWindow = {95, 105, 110, 90}; private int[] yWindow = {45, 45, 70, 70}; private int[] xFlame = {70, 70, 75, 80, 90, 100, 110, 115, 120, 130, 130}; private int[] yFlame = {155, 170, 165, 190, 170, 175, 160, 185, 160, 175, 155}; //----------------------------------------------------------------- // Constructor: Sets up the basic characteristics of this panel. //----------------------------------------------------------------- public RocketPanel() { setBackground (Color.black); setPreferredSize (new Dimension(200, 200)); } //----------------------------------------------------------------- // Draws a rocket using polygons and polylines. //----------------------------------------------------------------- public void paintComponent (Graphics page) { super.paintComponent (page); page.setColor (Color.cyan); page.fillPolygon (xRocket, yRocket, xRocket.length); page.setColor (Color.gray); page.fillPolygon (xWindow, yWindow, xWindow.length); page.setColor (Color.red); page.drawPolyline (xFlame, yFlame, xFlame.length); } }