Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What is Restrictions in hibernate?

Bally Technologies,

1 5804

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

EDS, Matrix,

8 24666

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 8415

which methods consisting of the serilizable interface?

3 6574

What is OOP?

BMC, Microsoft,

2 6082

What is encapsulation? Elaborate with example?

BMC,

1 8586

What is data abstraction? Elaborate with example?

BMC, TCS,

4 36946

What is casting?

BMC,

3 6664

What is thread?

BMC, Virtusa,

7 10634

What is advantage of using threads?

BMC,

2 11136

How the threads are synchronized?

BMC, CTS,

2 6169

What is Interface?

BMC,

8 11943

Do you know thread pools?

BMC,

2203

How multi processing is achieved in JAVA?

BMC,

5 22286

What is hash method?

1 4367

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Un-Answered Questions { Core Java }

Can a final variable be manipulated in java?

988

What does snprintf return?

1014

What are keywords in java?

1012

What is sortedset in java?

1034

Given a singly linked list, find the middle of the list in a single traversal without using temporary variable.

1056

When do I need to use reflection feature in java?

1088

What is adapter in java?

931

How we can make copy of a java object?

1106

How many bytes are a float?

990

what is meant by encapsulation?

1088

Can we extend singleton class?

957

How many bits is a float?

1017

give an example for encapsulation?

1054

What is intern method in java?

1089

What are aggregate functions explain with examples?

1072

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