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Java J2EE 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 96991

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28952

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

Wipro,

7 29598

What is an abstract class?

DBS, Wipro,

8 28029

How can final class be used?

Accenture, Wipro,

5 27694

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

Wipro,

1 26689

Java support what type of parameter passing ?

Wipro,

7 20488

Explain the term serialization?

Wipro,

10 31791

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

Infosys, Wipro,

10 33930

What is Overriding and how can it be used?

Consagous, Wipro,

7 33580

How is serialization used generally ?

 3 21518

How are Swing and AWT be differentiated?

Wipro,

3 22564

Explain pass by reference and pass by value?

IBM, Wipro,

8 32836

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25726

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 75297

Un-Answered Questions { Java J2EE }

Is it possible to define a method in java class but provide it’s implementation in the code of another language like c?

1074

What causes no suitable driver error?

1021

What is layout manager in java?

938

How to read message from jms queue in java?

950

please mail me the interview question based on java/j2ee

2016

What is event in java?

940

What does @repository do in spring?

447

What is formatted output?

1024

what is the role of configuration manager?

940

What is permgen or permanent generation?

1082

How would you integrate spring and hibernate using hibernatedaosupport?

424

Can we initialize the final blank variable?

1133

What are pojo classes in spring?

478

What is the main method java?

1088

what do you understand by the term string with respect to java?

1104

For More Un-Answered { Java J2EE } Questions Click Here