cursor.java~12~

Jbuilder100个例子 都是经典例子 对大家学习Jbuilder非常有帮助

package approach;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class cursor extends Applet {
  int x,y;
  int x1=0,y1=0;
  boolean isStandalone = false;
  /**Get a parameter value*/
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }

  /**Construct the applet*/
  public cursor() {
  }
  /**Initialize the applet*/
  public void init() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception {
    this.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
      public void mouseMoved(MouseEvent e) {
        this_mouseMoved(e);
      }
    });
  }
  /**Get Applet information*/
  public String getAppletInfo() {
    return "Applet Information";
  }
  /**Get parameter info*/
  public String[][] getParameterInfo() {
    return null;
  }

  void this_mouseMoved(MouseEvent e) {
        x = e.getX() ;
        y = e.getY() ;
        repaint();
  }

  public void run(){
     while(true){
     try{
         if (x1<x)
            x1++;
         else
            x1--;
         if (y1<y)
            y1++;
         else
            y1--;
         repaint();
         Thread.sleep(100);
         }
         catch(InterruptedException e){}
      }
    }
   public void paint(Graphics g){
      g.setColor(Color.yellow);
      g.fillRoundRect(x1,y1,30,30,5,5);
      g.drawString("JAVA",x1,y1);
    }
}