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1¡¢Êó±êʼþ£ºµãÊó±ê°´Å¥ÊÂËü»áµ÷ÓÃÈý¸ö¼àÌýÆ÷·½·¨£ºmousePressed,mouseReleased,mouseClicked.
Êó±êʼþÌṩÁËmousePressed,mouseClicked,mouseDragged,mouseEntered,mouseExited£¬ mouseUp£¬mouseDown£¬mouseDragµÈʼþ¡£ÏÂÃæ½éÉÜÒ»¸öÊó±êÒ»Àý×Ó£º
import java.awt.*;
import java.applet.Applet;
public class CountClick extends Applet
{int CurrentMarks=0;
int a,b;
 public boolean mouseDown(Event evt,int x,int y)//Êó±ê°´ÏÂʱ×öµÄÊÂ
 { CurrentMarks++;//¼ÆÂ¼°´Ï´ÎÊý
   repaint();//Ë¢ÐÂÃæ°æ
   a=x;//µÃµ½Êó±êµÄºá×ø±ê
   b=y;//µÃµ½Êó±êµÄÊú×ø±ê
   return true;
 }
 public void paint(Graphics g)
 { g.drawString(" "+CurrentMarks,10,10);//´òÓ¡°´Ï´ÎÊý
   g.drawString(" "+a,10,30);//´òÓ¡Êó±êµÄºá×ø±ê
   g.drawString(" "+b,10,20);//´òÓ¡Êó±êµÄ¼á×ø±ê
 }
}
//<applet code="CountClick.class" width="200" height="100"></applet>      
      
   2¡¢¼üÅÌʼþ£ºÈç¹ûÎÒÃÇÏ£ÍûʹÓüüÅÌ»ñµÃÊäÈëÐÅÏ¢£¬¾Í±ØÐë´¦Àí¼üÅÌʼþ¡£ÎÒÃÇ¿ÉÒÔÓÃÔÚConponentµÄkeyDownÀ´ÊµÏÖ¡£ÈçÏÂÀý×Ó£º
import java.applet.Applet;import java.awt.*;
{   char Presskey;
     public boolean keyDown(Event evt, int key)
     {   Presskey=(char)key;//¼Ç¼Ä㰴ϵļü
     repaint(); return true;
}
      public void paint(Graphics g)
     {    g.drawString(Presskey,10,10); }//´òÓ¡Ä㰴ϵļüÖµ
}
   


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package com.mapabc.sz_hbt.util;
/**
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* <p>Description: </p>
* <p>Copyright: Copyright (c) 2007-5-10</p>
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* @version 1.0
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public class Test2 extends TestStatic{
      
static{    
System.out.println("b");
}
      
Test2(){ 
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}
public static void main(String args[]){
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    Element user=null;
    Element username=null,password=null;
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