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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 94831

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28381

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

Wipro,

7 29055

What is an abstract class?

DBS, Wipro,

8 27494

How can final class be used?

Accenture, Wipro,

5 27265

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

Wipro,

1 26400

Java support what type of parameter passing ?

Wipro,

7 19916

Explain the term serialization?

Wipro,

10 30997

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

Infosys, Wipro,

10 33147

What is Overriding and how can it be used?

Consagous, Wipro,

7 32975

How is serialization used generally ?

 3 21199

How are Swing and AWT be differentiated?

Wipro,

3 22186

Explain pass by reference and pass by value?

IBM, Wipro,

8 32179

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 73580

Un-Answered Questions { Java J2EE }

What is server in j2ee?

819

What is spring jdbc template?

493

How does aop work in spring?

362

What is @resource in java?

957

What are the benefits of detached objects?

1017

How do I save in hibernate?

438

What are the different ways of implementing thread? Which one is more advantageous?

942

What are different access specifiers in java? Explain

1065

Explain the generic term internet.

965

What is cgi?

955

How many bytes is a string in java?

948

I am a fresher and know core java, c languge, html, css etc if I am illegible for any job then send it on my email tatranakshay276@gmail.com

1651

What is fetch in hibernate?

530

What is parsing and its types?

1038

What are the advantages of using preparedstatement in java?

928

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