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Difference between == and equals() in java

Praveen palukuri
Ranch Hand

Joined: Feb 10, 2005
Posts: 65
hi,
can u give exact difference between == operator and .equals() in java.

Thank You in advance.
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24183
    
  34

"==" asks whether two objects are the same physical object -- the same chunk of memory. "equals()" is a method which by default means the same thing, but can be overridden to ask whether two objects are "the same" by some appropriate definition. For example, two String objects are "the same" if they have the same characters in the same order, even if they are two different physical objects. String overrides equals() to mean this.


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It is sorta covered in the JavaRanch Style Guide.
 
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