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 5693

hr interview how many minutes asking question

2042

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 4435

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

HCL, NIIT,

1 13271

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 9043

aabccdee Find the used alphabets as abcde ?

4 6105

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,

1991

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

IBM, Manhattan, TCS,

3 5605

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 8634

what is object slice?

HTC, TCS,

2 8281

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

TCS,

5 9746

why abstract class does not have object creation

Value Labs,

6 13521

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Un-Answered Questions { Core Java }

When will we prefer to use set and list in java and why?

963

What is singleton service?

973

What is the difference between and ?

1016

How do you square a number?

1270

Define reflection.

995

Explain about static imports in java?

994

What are the various access specifiers for java classes?

1056

How to calculate the length of a singly linked list in java?

1035

What is the meaning of find and replace?

1031

What is static keyword?

1150

Why call by value prevents parameter value change?

1076

is there a separate stack for each thread in java? : Java thread

976

What is function overriding and overloading in java?

1112

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

945

What is the use of coding?

967

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