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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

What is garbage collection in Java, and how can it be used ?

Accenture, HCL, Infosys, Sara, SITS, TCS, Wipro,

32 94819

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28377

Differentiate constructor and a method and how are it be used?

Wipro,

7 29051

What is an abstract class?

DBS, Wipro,

8 27493

How can final class be used?

Accenture, Wipro,

5 27264

By what default value is an object reference declared as an instance variable?

Wipro,

1 26399

Java support what type of parameter passing ?

Wipro,

7 19914

Explain the term serialization?

Wipro,

10 30987

Is there is any error if you have multiple main methods in the same class?

Infosys, Wipro,

10 33141

What is Overriding and how can it be used?

Consagous, Wipro,

7 32973

How is serialization used generally ?

3 21198

How are Swing and AWT be differentiated?

Wipro,

3 22182

Explain pass by reference and pass by value?

IBM, Wipro,

8 32178

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25254

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 73570

Un-Answered Questions { Java Related }

What are local interfaces? Describe.

1167

What are advantages of spring usage?

378

What is ioc concept & explain it?

1043

What is return code?

959

What is statement and resultset in jdbc?

899

Is 9 a prime number?

842

Which type of driver is unique in jdbc?

936

Explain about the main() method in java?

1026

What is the difference between private & public & friendly classes?

1026

What is swing container?

897

Can a class have multiple superclasses?

1091

What does hql stand for?

291

What are the various types of entrepreneur java bean?

898

What is a Thread dump? How will you take in unix/linux and windows ?

994

When do we use execute method in java jdbc?

941

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