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 95884

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28698

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

Wipro,

7 29356

What is an abstract class?

DBS, Wipro,

8 27751

How can final class be used?

Accenture, Wipro,

5 27486

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

Wipro,

1 26558

Java support what type of parameter passing ?

Wipro,

7 20211

Explain the term serialization?

Wipro,

10 31416

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

Infosys, Wipro,

10 33562

What is Overriding and how can it be used?

Consagous, Wipro,

7 33280

How is serialization used generally ?

3 21363

How are Swing and AWT be differentiated?

Wipro,

3 22387

Explain pass by reference and pass by value?

IBM, Wipro,

8 32523

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25487

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 74474

Un-Answered Questions { Java Related }

What are different types of autowire?

412

Explain the query object in hibernate?

423

What are the different types of events in java?

857

Where will it be used?

1944

What do you understand by dependency injection?

456

What are the new features in spring 5?

442

What is supplier in java?

1004

Does unicode support all languages?

1035

What is action class? What are the types of action class?

966

Is nan false?

981

Why singleton pattern is better than creating singleton class with static instance?

1000

Match the ejb functions given below with the functionality equivalent in sql? : BEA Weblogic

902

what is websphere edge server?

864

What is jms publisher?

826

How to get the actual path of servlet in server?

1225

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