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equals( )

 
Greenhorn
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Please can you say me why operator overloading is not provided in java...where as c++ provided it.
If it is present,we can override == just like overriding the equals().


regards,
yasoda.
 
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It is not provided because the creater of Java decided to not provide it. The '+' is overloaded (addition and String concatenation), but you cannot overload any operator.
 
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Because operator overloading makes code hard to mainten.

image if == was overload to be equivelent to Object.equals(Object x)

how would you mainten this piece of code:

if(someObject == someOtherObject)
{
//Do some random fancy code here
}

Reading that code how do you know if the condition is checking for equality of object reference or for equality of object?

You might be able to tell from the context of the code about the condition, but that isnt very robust.
I think it was a good call on the side of the designers.

G
 
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There will be more ambiguity if ther is concpt like operator overloading.

since java eliminates ambiguities that are present in c++ such as multiple inheritance ,operator overloading
 
Greenhorn
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Originally posted by yasoda aravapalli:
Please can you say me why operator overloading is not provided in java...where as c++ provided it.
If it is present,we can override == just like overriding the equals().


regards,
yasoda.



No operator overloading make JAVA simple. You always need to overriding the equals() , never use == to check Object.
 
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"zh ro", you have previously been warned on one or more occasions regarding adjusting your display name to meet JavaRanch standards. This is not optional. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it prior to your next post.

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