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What's the main difference between arraylist / hashmap and vector / hashtable?

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More OOAD Interview Questions

Explain the concept of multiple inheritance (virtual inheritance). Write about its advantages and disadvantages?

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What are the various types of constructors?

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What is the use of finalize method?

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Which OOPS concept is used as a reuse mechanism?

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Why abstraction is important?

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What is a try/ catch block?

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