import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;

//简单的canvas by sword2008@程序之巢

public class test2 extends MIDlet{
 private Display display;

 public test2(){
 display=Display.getDisplay(this);
 }

 public void startApp(){
 display.setCurrent(new test());}

 public void pauseApp(){ }

 public void destroyApp(boolean unkowmn){ }

class test extends Canvas
{
 public void paint(Graphics g){
  g.setColor(255,255,0);
  g.fillRect(0,0,getWidth(),getHeight());
  int c=g.getColor();
  int d=g.getDisplayColor(g.getColor());
  System.out.println("当前画面的颜色为："+Integer.toHexString(c));

       System.out.println("当前画面的R值为："+g.getRedComponent());

       System.out.println("当前画面的G值为："+g.getGreenComponent());

       System.out.println("当前画面的B值为："+g.getBlueComponent());

       System.out.println("当前画面的显示颜色为："+Integer.toHexString(d));

        System.out.println("当前画面的灰度为："+g.getGrayScale());

  }

}
}

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