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 7447

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

1 9953

how to make hashmap object as synchronized object?

BOB Technologies,

2 5616

how to execute main()

Symphony, TCS,

4 8240

can we overload main method?

TCS,

8 9732

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

1 5544

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 10663

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 5169

Can we override the main method?

4 7576

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

1809

can write code for serialization ?

HCL, MegaSoft,

1 4127

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

2 4871

How to print a statement without using semicolan in java

HCL, IBM,

6 11985

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

NIIT, TCS,

2 6256

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

NIIT,

2305

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Un-Answered Questions { Core Java }

What are disadvantages of java?

996

Which variables are stored in stack?

895

Is char * a string?

985

What is an array in java?

1193

What is ellipsis in java?

1080

What is polymorphism in java? What are the kinds of polymorphism?

1066

What does pointer mean?

1046

What is the flag in java?

1053

What are computer functions?

943

What is a double?

1095

Why do we need data serialization?

986

What is anti pattern in programming?

966

Where is const variable stored?

932

What is abstract class constructor called?

999

Difference between arraylist and vector.

1118

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