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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

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 94802

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28368

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

Wipro,

7 29045

What is an abstract class?

DBS, Wipro,

8 27490

How can final class be used?

Accenture, Wipro,

5 27260

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

Wipro,

1 26396

Java support what type of parameter passing ?

Wipro,

7 19909

Explain the term serialization?

Wipro,

10 30976

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

Infosys, Wipro,

10 33130

What is Overriding and how can it be used?

Consagous, Wipro,

7 32968

How is serialization used generally ?

3 21191

How are Swing and AWT be differentiated?

Wipro,

3 22174

Explain pass by reference and pass by value?

IBM, Wipro,

8 32174

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25250

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 73556

Un-Answered Questions { Java Related }

What is the function of annotation @requestbody?

354

what is the purpose of "virtual"?

1025

What are internal variables?

945

How do you stop lazy loading?

395

What is difference between jms and activemq?

816

What are decalarations?

1067

What is awt and swing in java?

910

Name the eight primitive java types.

1074

Write java program to reverse string without using api?

990

How do you add an arraylist to an array in java?

936

Why stringbuilder is not thread safe in java?

972

What is the is the default transaction factory in hibernate?

438

Why main method is static in java?

1118

What is delegation?

937

Is swing part of core java?

957

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