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thisµÄÓ÷¨ÔÚjavaÖдóÌå¿ÉÒÔ·ÖΪ3ÖÖ£º
 //1.ÆÕͨµÄÖ±½ÓÒýÓÃ
class test {
   private int x,y;
   public test(int x,int y) {
       setX(x);//Ò²¿ÉÒÔдΪthis.setX(x);ÕâÖÖÇé¿öÏÂthis¿ÉÒÔÊ¡ÂÔ.
   }
}
//2.·½·¨ÖеÄij¸öÐβÎÃûÓ뵱ǰ¶ÔÏóµÄij¸ö³ÉÔ±ÓÐÏàͬµÄÃû×Ö.ΪÁ˲»»ìÏý,ʹÓÃthisÇø·ÖÓÐthisÒýÓõÄÊdzÉÔ±,ûÓÐthisÊÇÐβÎ
class test {
   private int x,y;
   public test(int x,int y) {
       setX(x);//Ò²¿ÉÒÔдΪthis.setX(x);ÕâÖÖÇé¿öÏÂthis¿ÉÒÔÊ¡ÂÔ.
   }
   setX(int x){
       this.x = x;//this.xÊÇÒýÓõĶÔÏó,xÊÇsetX(int x)ÖеÄÐвÎx
   }
}
//3.ÒýÓù¹Ô캯Êý
class test.{
    public int x,y;
    public test(int x,int y){
        this.x = x;
        this.y = y;
    }
    public test(){
         this.(2,0)//¹¹Ô캯Êýµ÷ÓÃÆäËû¹¹Ô캯ÊýµÄ·½·¨,Õâ¸öÀý×Óµ÷ÓÃÉÏÃæÄǸö¸´Óù¹Ô캯ÊýµÄ·½·¨
    }
}
   
package test;
public class ThisTest {
    private int i=0;
    //µÚÒ»¸ö¹¹ÔìÆ÷£ºÓÐÒ»¸öintÐÍÐβÎ
    ThisTest(int i){
       this.i=i+1;//´Ëʱthis±íʾÒýÓóÉÔ±±äÁ¿£é£¬¶ø·Çº¯Êý²ÎÊý£é
       System.out.println("Int constructor i——this.i:  "+i+"——"+this.i);
       System.out.println("i-1:"+(i-1)+"this.i+1:"+(this.i+1));
       //´ÓÁ½¸öÊä³ö½á¹û³ä·ÖÖ¤Ã÷ÁËiºÍthis.iÊDz»Ò»ÑùµÄ£¡
    }
    //  µÚ¶þ¸ö¹¹ÔìÆ÷£ºÓÐÒ»¸öStringÐÍÐβÎ
    ThisTest(String s){
       System.out.println("String constructor:  "+s);
    }