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

Core Java Interview Questions

Questions Answers Views Company eMail

Why ArrayList class is not a synchronized class and why it is not a thread safe class? explain

1 4644

what is actual real time using of oops concepts in projects(Interface,polymorphism.abstraction.........)

2 10680

I have 2 objects inside one object(vector). how can i serialize one of them. I dont want to serialize the second one

ABC, L&T,

3 8294

What is the difference between Synchronizing mehtod & Synchronizing block?

2 5499

what is check p object in java

TCS,

1 3846

what is the need to set path in java? how many ways to set path in java? Explain breif?

5 19944

What Is Pointer?

4 4984

how to print the below in java?thanks in advance.... * * * * * * * *

3 4753

how to print the below in java? * * * * * * * * *

2 4544

difference between String a; and String a=new String();? y do v need to assign memory to the variable?

2 5554

In how many ways we can the thread? in java

3 8891

how to make a un-checked exception as a checked exception one.

2 4898

Why only one Class is public in one file? Explain in details. Thanks in Advance.

12 15475

Hi can u pls tell me what is the use of marker interface. Iknow what is marker interface but what ability will the object get by implementing this.

CGI,

3 5505

what is the replacement method of stop() of thread

IBM, TCS,

8 11166

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Un-Answered Questions { Core Java }

What is generics in java interview questions?

774

Which eclipse is best for java?

742

why are wait(), notify() and notifyall() methods defined in the object class? : Java thread

748

Is hashset ordered java?

822

How many bits is a char?

731

Is integer immutable in java?

738

What does escaping a character mean?

727

Why static functions are used?

794

What is java used for?

776

Is java based on c?

752

What does pointer mean?

755

What are the benefits of java?

784

Is assembly language a low level language?

703

What is final int?

722

what is a thread pool in java and why is it used?

726

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