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

Core Java Interview Questions

Questions Answers Views Company eMail

What is meant by Servelet? What are the parameters of service method?

2 6637

What is meant by Session? Explain something about HTTP Session Class?

1 9532

how to make hashmap object as synchronized object?

BOB Technologies,

2 5065

how to execute main()

Symphony, TCS,

4 7107

can we overload main method?

TCS,

8 8566

we cannot create an object of interface but we can create a variable of it

1 5075

There are three interfaces A,B & C. A extends B, B extends C, and C extends A.Is it multiple Inheritance? please anybody help me.....

5 9703

abstract class A{ int list []=new int [100]; A(int x,int y){ rondom n=new rondom(); for (int i==;i<100;i++); list [i]=x+r.next int(y-x+1); abstract sort (); abstract binary sarch(int temp); class B extends A{

3 4453

Can we override the main method?

4 6706

make a method which any number and any type of argument and print sum of that arguments.....

1581

can write code for serialization ?

HCL, MegaSoft,

1 3625

What is Yield() method when we r using this ? tell exactly

2 4342

How to print a statement without using semicolan in java

HCL, IBM,

6 11003

Hi friends i want display Triangle shap stars(*) please can tell me any one java code logic? * *** ***** ******* Like this

NIIT, TCS,

2 5708

What is the difference between Java1.4 and Java1.5

NIIT,

2048

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Un-Answered Questions { Core Java }

Mention a package that is used for linked list class in java.

730

Is java util list serializable?

703

Explain about varargs in java?

864

What are the supported platforms by java programming language?

795

Explain a situation where finally block will not be executed?

759

What are the main uses of the super keyword?

745

What are the high-level thread states in java programming?

822

When will you define a method as static in Java?

754

What is the java virtual machine?

838

How variables are stored in memory?

712

Why can't we make a class private in java?

766

How to create packages in java?

711

Why for each loop is used?

734

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

711

What is finalize()?

865

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