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  ΪÁË×öµ½Ê¹µÃ³ÌÐò¾ßÓиü¸ßµÄÁé»îÐÔ£¬¿ÉÅäÖÃÐÔ£¬ÔÚ¿ª·¢ÖÐÎÒÃǾ­³£ÀûÓ÷´ÉäÀ´´´½¨Ò»¸öÀàµÄʵÀý£¬Ò²¾ÍÊÇ»ñµÃÒ»¸öÀàµÄÒ»¸ö¶ÔÏó£¡Í¨³£µÄ×ö·¨ÊÇͨ¹ýclass.newInstance»ñµÃ£»µ«ÕâÖÖ·½·¨ÓÐÒ»¸ö²»ºÃµÄµØ·½£¬ÄǾÍÊÇËûÖ»ÄÜ´´½¨Î޲ι¹ÔìÆ÷µÄ¶ÔÏó£¬Èç¹û¹¹ÔìÆ÷ÓвÎÊýÄÇËüÊÇÎÞÄÜΪÁ¦µÄ£»½â¾öµÄ·½·¨¾ÍÊÇ ÏÈͨ¹ý¸ÃÀàµÄClass»ñµÃ´øÓвÎÊýµÄ¹¹ÔìÆ÷£¬È»ºóͨ¹ýµÃµ½µÄ¹¹ÔìÆ÷ºÍ´«ÈçµÄ³õʼ»¯²ÎÊýÀ´´´½¨ÊµÀý£¡ÒÔÏÂÊÇÉÏÊö×ö·¨µÄÒ»¸ödemo:
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package reflect;   
  
public class Duck {   
  
    private Integer weight;   
    private String name;   
       
    public Duck(){   
      System.out.println("Î޲ε÷ÓÃÁË");     
    }   
       
       
   public Duck(String name){   
       name=name;   
       System.out.println("one²Îµ÷ÓÃÁË");      
    }   
      
   public Duck(String name,Integer weight){   
       name=name;   
       weight=weight;   
       System.out.println("Two²Îµ÷ÓÃÁË");      
    }   
}  
package reflect;   
  
import java.lang.reflect.Constructor;   
import java.lang.reflect.InvocationTargetException;   
  
public class ExeTest {   
       
    public static&nbs


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