Answer Posted / pranab dutta

Vector is synchronized
Arraylist is not synchronized.

What does t in java mean?

530

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Why wait(),notify(),notifyAll() methods defined in Object class althought we are using in only threads.

2364

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Can we create object of inner class in java?

489

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What is the use of default method in interface in java?

543

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How many bytes is a string java?

523

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Is heap stored in ram?

518

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Write a program in java to create a doubly linked list containing n nodes.

549

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What restrictions are placed on method overriding in java programming?

536

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What is bitwise complement?

496

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How are this() and super() used with constructors in java programming?

563

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When should we create our own custom exception classes?

579

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Can we override private methods?

538

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What are classloaders?

593

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How can you make sure that your singleton class will always return single instance in multi-threaded environment?

563

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What are anonymous inner classes?

559

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