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When to use shallow copy and deep copy ?

Praveen Kumar
Ranch Hand

Joined: Nov 06, 2006
Posts: 133
Hi

I know concepts about shallow copy and deep copy. Just i want to know when we will go for shallow copy and deep copy ?. Please suggest some examples that would be great.

Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 13869
    
  10

It depends entirely on what the needs are for the program you are writing - there's no general answer to this question.

I'd avoid copying objects as much as possible - it costs performance and memory. If you make your data objects immutable, you'll never need to copy them.


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