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

Core Java Interview Questions

Questions Answers Views Company eMail

Tell me about your ability to work under pressure

AXA,

2191

Hi am an mca graduate . i have done bsc maths in my degree . every company asks me why you make shift from maths group to computere field . What i need to answer?

2 5689

hr interview how many minutes asking question

2042

please send me hr interview questions in it industry

2123

How to Sort Strings which are given in List and display in ascending order without using java api.

LIC,

1 4431

How to Sort list of Strings in ascending order without using java api.

HCL, NIIT,

1 13261

If I will write String s=new String("XYZ"); String s1=new String("XYZ"); if(s.equals(s1)){ sop("True"); } else{ sop("False"); } This program will give me "True". But When I am creating my own class suppose class Employee{ public Employee(String name); } Employee e= new Employee("XYZ"); Employee e1 = neew Employee("XYZ"); if(e.equals(e1)){ sop("True"); } else{ sop("False"); } Then it will give the output as "False". Can I know what is happening internally?

5 9027

aabccdee Find the used alphabets as abcde ?

4 6091

there are N number of matchboxes numbered 1...N.each matchbox contain various number of stick.Two player can alternatevely pick some amount of stick from the higest stick containing box . The player is condidered win if there is no stick after his move.Find the final move so that the move player win. Note:In case the number of stick is equal ,pick the stick from the higest numbered box.

Manhattan,

1990

solve (x-1)(x-9)=8;

IBM, Manhattan, TCS,

3 5574

what type of questions asked for barclays technologies pune please send urgent

5660

take any 4 input numbers. like 2345.. wanted out put is All 16 combinations of the number 2345.. for example- taking input as 4565 output- 5654 4556 4655..

Emphasis,

2 8618

what is object slice?

HTC, TCS,

2 8257

Java does not support multiple inheritance. how interface helps in the same?

TCS,

5 9724

why abstract class does not have object creation

Value Labs,

6 13491

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Un-Answered Questions { Core Java }

What is the difference between && and & in java?

1076

Explain numeric promotion?

1099

Describe the various concepts related to object oriented programming (oop).

1028

What methods are used in Servlet?Applet communication?

2235

Can a static class have a constructor java?

980

When a byte datatype is used?

2182

What is thread life cycle?

955

explain multi-threading in java?

1026

What methodology can be utilized to link to a database?

958

What is the purpose of the system class in java programming?

1097

What do you mean by stack?

1149

What are the types of relation?

1041

What is java in simple terms?

994

What is e in java?

958

Is java call by reference?

967

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