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Java

keyTestCanvas.java：源码内容

							package keyTest;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
public class keyTestCanvas extends Canvas
{
	public keyTestCanvas()
        {
    
        }
        public void paint(Graphics g)
        {   int width=this.getWidth();
            int height=this.getHeight();
            g.setColor(0xFFFFFF);
            g.fillRect(0,0,width,height);       
        }
        protected void keyPressed(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"被按下，值为"+keyCode);
        }
        protected void keyReleased(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"释放");
        }
        protected void keyRepeated(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"被持续按下");
        }
     
}

						