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

Java J2EE (14736)
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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 95925

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28708

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

Wipro,

7 29364

What is an abstract class?

DBS, Wipro,

8 27765

How can final class be used?

Accenture, Wipro,

5 27500

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

Wipro,

1 26562

Java support what type of parameter passing ?

Wipro,

7 20224

Explain the term serialization?

Wipro,

10 31431

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

Infosys, Wipro,

10 33574

What is Overriding and how can it be used?

Consagous, Wipro,

7 33289

How is serialization used generally ?

3 21369

How are Swing and AWT be differentiated?

Wipro,

3 22393

Explain pass by reference and pass by value?

IBM, Wipro,

8 32537

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25499

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 74503

Un-Answered Questions { Java Related }

How is declarative handling of exceptions done in struts ?

932

Explain about anonymous inner classes ?

1088

What is inversejoincolumns in hibernate?

518

Explain the main method?

1054

Are registers volatile?

942

What is threaded programming and when is it used? : Java thread

1072

What are the steps in the jdbc connection?

1031

How to change webcontainer thread pool size?

877

What are the features of java?

1084

Can we override constructor?

1034

What are the features of struts?

1023

How to upgrade the latest patches in weblogic?

1052

Can we deploy jar in weblogic?

1008

Who is at risk in java? : java security

963

What is the set interface in java programming?

1219

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