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 95637

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28630

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

Wipro,

7 29293

What is an abstract class?

DBS, Wipro,

8 27698

How can final class be used?

Accenture, Wipro,

5 27435

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

Wipro,

1 26526

Java support what type of parameter passing ?

Wipro,

7 20138

Explain the term serialization?

Wipro,

10 31313

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

Infosys, Wipro,

10 33490

What is Overriding and how can it be used?

Consagous, Wipro,

7 33233

How is serialization used generally ?

3 21331

How are Swing and AWT be differentiated?

Wipro,

3 22346

Explain pass by reference and pass by value?

IBM, Wipro,

8 32455

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25428

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 74291

Un-Answered Questions { Java Related }

Define persistent classes.

600

Why java is oop language?

920

How do you sort in descending order in java using collections sort?

883

Is node a data type in java?

994

Why bean class is used in java?

918

What is difference between cookies and httpsession?

1086

What is class and object in java?

996

Why do we use spring mvc?

415

What are advantages and disadvantages of OOPs?

1128

How do you swing an applet?

1080

Can we override protected method in java?

1047

What is the purpose of return statement?

1053

What is unicode full form?

974

Why we override equals() method?

1029

What is the standard way to create threads, do initialization, etc. Within the application server? : BEA Weblogic

1014

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