huacanvas.java

这是一个类似于谈吃蛇的小游戏,小蛇会在移动过的地方留下痕迹

import javax.microedition.lcdui.*;
public class huaCanvas extends Canvas{
	  private Display display;
	  public huaCanvas(Display d) {
		    super();
		    display = d;
		  }

		  void start() {
		    display.setCurrent(this);
		    repaint();
		  }

		  public void paint(Graphics g) {
		    // Clear the display
		    g.setColor(255, 255, 255);  // White
		    g.fillRect(0, 0, getWidth(), getHeight());

		    // Draw the first row of circles
		    g.setColor(0, 0, 255);    // Blue
		    g.drawArc(5, 5, 25, 25, 0, 360);
		    g.setColor(0, 0, 0);      // Black
		    g.drawArc(35, 5, 25, 25, 0, 360);
		    g.setColor(255, 0, 0);    // Red
		    g.drawArc(65, 5, 25, 25, 0, 360);

		    // Draw the second row of circles
		    g.setColor(255, 255, 0);  // Yellow
		    g.drawArc(20, 20, 25, 25, 0, 360);
		    g.setColor(0, 255, 0);    // Green
		    g.drawArc(50, 20, 25, 25, 0, 360);
		  }

}