Clone Doubts

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posted 14 years ago

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Hi all,

What is clone is used for? What is the difference between shallow & deep clone? Can anybody give some examples on clone?Is there any questions will be asked in clone for JDK1.4?

Micheal John
SCJP 1.4 (86%), SCWCD 1.4 (86%), SCBCD 1.3 (85%), SCDJWS (Just Started...) - Satisfaction Lies in Our EFFORT, Not in the ATTAINMENT

Barry Gaunt

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posted 14 years ago

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Does it help to say that clone() is not in SCJP 1.4?
Then we don't have to answer the other questions.

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Barry Gaunt

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posted 14 years ago

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Cloning is for the sheep. Cloning a sheep called Dolly makes another identical sheep called Dolly2.
However, suppose that Dolly has a baby lamb. If we shallow clone Dolly, then Dolly2 will think that the lamb is hers too, and Dolly will not like that at all.

But if we deep clone Dolly, then we have to clone the lamb too. Then for Dolly2 all is fine because she has her own baby lamb to care for.

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Getting someone to think and try something out is much more useful than just telling them the answer.

Micheal John

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posted 14 years ago

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Thanks for your help..not for stating that clone is not in SCJP 1.4, but for your explanation about clone is very nice to understand!!

Micheal John
SCJP 1.4 (86%), SCWCD 1.4 (86%), SCBCD 1.3 (85%), SCDJWS (Just Started...) - Satisfaction Lies in Our EFFORT, Not in the ATTAINMENT

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