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,

2198

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 5696

hr interview how many minutes asking question

2045

please send me hr interview questions in it industry

2125

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

LIC,

1 4439

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

HCL, NIIT,

1 13279

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 9051

aabccdee Find the used alphabets as abcde ?

4 6112

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,

1992

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

IBM, Manhattan, TCS,

3 5615

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

5665

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 8636

what is object slice?

HTC, TCS,

2 8294

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

TCS,

5 9760

why abstract class does not have object creation

Value Labs,

6 13529

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Un-Answered Questions { Core Java }

What is jit compiler ?

982

What do you understand by final value?

1061

How many static init can you have?

1216

What is variable and constant explain with example?

1100

Can we have more than one package statement in source file ?

1036

What is a boolean expression in java?

1035

Why do we need autoboxing in java?

999

Where are local variables stored?

970

What is the use of using enum to declare a constant?

1029

Which graphs are functions?

976

Differentiate between stringbuffer and string?

1033

How does linkedlist work in java?

934

What are streams in java 8?

1009

What is the preferred size of a component in java programming?

1004

What is serial version uid and its importance in java?

1052

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