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

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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 96954

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28950

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

Wipro,

7 29597

What is an abstract class?

DBS, Wipro,

8 28024

How can final class be used?

Accenture, Wipro,

5 27685

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

Wipro,

1 26685

Java support what type of parameter passing ?

Wipro,

7 20480

Explain the term serialization?

Wipro,

10 31782

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

Infosys, Wipro,

10 33919

What is Overriding and how can it be used?

Consagous, Wipro,

7 33566

How is serialization used generally ?

3 21514

How are Swing and AWT be differentiated?

Wipro,

3 22558

Explain pass by reference and pass by value?

IBM, Wipro,

8 32823

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25720

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 75250

Un-Answered Questions { Java Related }

What is flatmap in rxjs?

1043

Why is java important for internet?

941

What are the different ways we can maintain state between requests?

1166

What is array length?

1023

EDS (Electronic Data Systems India Pvt Ltd) at Chennai on 16-12-2006.

9281

What is the default bean scope within spring?

531

How does JDBC API helps us in achieving loose coupling between Java Program and JDBC Drivers API?

1130

What do you mean by local class?

1057

What is hibernate in java?

383

Can vector have duplicates in java?

996

What are different Struts2 tags? How can we use them?

1008

Explain tasklet in spring batch.

517

Explain the types of hibernate instance states.

424

What is the relation between member tables with order table?

893

What is glasgow?

1111

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