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Core Java Interview Questions
Questions Answers Views Company eMail

What is Restrictions in hibernate?

Bally Technologies,

1 4997

What is the difference between array and arraylist? what is the difference between arraylist and linkedlist?

EDS, Matrix,

8 21999

Does a class inherit the constructor of its super class?if it does, how can you hide that constructor? if it doesnot how can you call it from the sub class?

 2 7273

which methods consisting of the serilizable interface?

 3 5221

What is OOP?

BMC, Microsoft,

2 4955

What is encapsulation? Elaborate with example?

BMC,

1 7688

What is data abstraction? Elaborate with example?

BMC, TCS,

4 35454

What is casting?

BMC,

3 5415

What is thread?

BMC, Virtusa,

7 8229

What is advantage of using threads?

BMC,

2 9978

How the threads are synchronized?

BMC, CTS,

2 4777

What is Interface?

BMC,

8 9171

Do you know thread pools?

BMC,

1680

How multi processing is achieved in JAVA?

BMC,

5 20501

What is hash method?

 1 3611

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Un-Answered Questions { Core Java }

Which collection is ordered in java?

527

What is meant by stack and queue?

596

What is hashmap in java?

560

Why are getters and setters used?

563

Can we clone singleton object?

551




What is the purpose of the file class in java programming?

520

Can we create object of static class?

522

What is derived datatype?

621

How to perform quicksort in java?

559

What is the purpose of void class?

599

What is the length of a string?

515

What is close method? How it's different from Finalize & Dispose?

553

Differentiate between static and non-static methods in java.

557

What happens if main method is not static?

489

What is the purpose of tostring() method in java?

545

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