Example of ==, equals and hashcode in java
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by Abhishek Jain
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Published on 2010-04-28T17:47:21Z
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2010/04/28
17:57 UTC
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Given this:
String s1= new String("abc");
String s2= new String("abc");
String s3 ="abc";
System.out.println(s1==s3);
System.out.println(s1==s2);
System.out.println(s1.equals(s2));
System.out.println(s1.equals(s3));
System.out.println(s1.hashCode());
System.out.println(s2.hashCode());
System.out.println(s3.hashCode());
Output is: false false true true 96354 96354 96354
Here == is giving false for each object but hashcode for each String object is same. Why is it so?
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