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 5914

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

EDS, Matrix,

8 24931

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 8518

which methods consisting of the serilizable interface?

3 6701

What is OOP?

BMC, Microsoft,

2 6182

What is encapsulation? Elaborate with example?

BMC,

1 8699

What is data abstraction? Elaborate with example?

BMC, TCS,

4 37122

What is casting?

BMC,

3 6793

What is thread?

BMC, Virtusa,

7 10879

What is advantage of using threads?

BMC,

2 11244

How the threads are synchronized?

BMC, CTS,

2 6286

What is Interface?

BMC,

8 12239

Do you know thread pools?

BMC,

2252

How multi processing is achieved in JAVA?

BMC,

5 22472

What is hash method?

1 4444

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Un-Answered Questions { Core Java }

Can you explain the meaning of aggregation and composition

1073

Why packages are used?

1692

When do we need to use internal iteration? When do we need to use external iteration?

1199

What Is Query Throttling in java?

1051

What are data types in programming?

1045

State two differences between C and Java.

1398

What is a bubble sort in java?

1008

What is Gang of four design patterns

1117

Which is a valid identifier?

1314

Can I override protected method in java?

1135

Why does java have different data types for integers and floating-point values?

1071

What was java originally called?

1009

What are the advantages of encapsulation in java?

1060

What is codebase?

1059

What does || || mean in math?

1003

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