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Article #18939

��ѧ����Object���equlas����

#18939
From: bluestar
Date: Wed, 14 Jan 2004 07:49
36 lines
2272 bytes
����˵"��Ȼÿ���඼�жϳ���Object��equlas����,�������Object���е�ԭʼ������
���ݲ���ȥ���κε��ж�,ֻ�Ƿ���false����,����������Ƶ�ÿ����,�����Ҫʹ�õ� 
equals�������ʱ,�����Ҫ���и�����".
�������µ�����С����(δ��equals���и���)
1)
  public class StringEquals1
 {
      public static void main(String argv[])
      {
           String str1 = new String("Hello");
           String str2 = new String("Hello");
           System.out.println(str1.equals(str2));
       }
  }

//����ʾtrue 

2)
  //���һ��MyObject��,������һ��int���Խ�data
  public class Prog
 {
      public static void main(String argv[])
      {
           MyObject obj1 = new MyObject(1);
           MyObject obj2 = new MyObject(2);
           System.out.println(obj1.equals(obj2));
       }
  }

//��ʾfalse

Ϊʲôͬ��δ��equals����,��һ���ܵõ���ȷ�Ľ��,��ڶ���ȴ����?��ʲôʱ��
����Ҫ��equals���и���?  
--
�� �޸�:��xingchen � 01��14��15:48:57 �޸ı��ġ�[FROM: 220.113.170.59]
�� ��Դ:����ˮ˼Դ bbs.sjtu.edu.cn��[FROM: 220.113.170.59]
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From: xingchen.bbs@bbs.sjtu.edu.cn (bluestar)
Newsgroups: cn.bbs.comp.lang.java
Subject: ��ѧ����Object���equlas����
Date: 14 Jan 2004 07:49:01 GMT
Organization: ��ˮ˼Դ
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