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equals Method?

Joe Harry
Ranch Hand

Joined: Sep 26, 2006
Posts: 9345
    
    2

Hi Guys,

Is the equals method overriden in the collection interface or is it the one from the Object class??


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Deepak Bala
Bartender

Joined: Feb 24, 2006
Posts: 6661
    
    5

I think you answered your own question. Since it is an interface how would you go about providing an implementation ?


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Joe Harry
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Joined: Sep 26, 2006
Posts: 9345
    
    2

Thanks John...
Sanjeev Singh
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Joined: Nov 01, 2006
Posts: 381
Is the equals method overriden in the collection interface or is it the one from the Object class??

This first thing to be noted is that interfaces can not override the methods as you quoted it can only declare the methods to be overriden.

The equal() methods in each collection is overrided by the abstract classes which they extends.
java.lang.Object
|--- java.util.AbstractCollection
|--- java.util.AbstractList (equal() is overrided here)
|----java.util.ArrayList
[ December 17, 2006: Message edited by: Sanjeev Kumar Singh ]

~Sanjeev Singh<br />SCJP 1.5
Joe Harry
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Joined: Sep 26, 2006
Posts: 9345
    
    2

Sanjeev, thanks for the details.
 
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