www.pudn.com > j2me-game.rar > OCanvas.java

import javax.microedition.lcdui.*; 
 
public class OCanvas extends Canvas { 
  private Display display; 
 
  public OCanvas(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); 
  } 
}