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

Core Java Interview Questions

Questions Answers Views Company eMail

Write a program to check string is palindrome without using loop?

Cyient,

1035

What is jvm? How its run?

1087

Define inheritance with reference to java.

1089

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

963

How can we create a synchronized collection from given collection?

1085

How to avoid memory leak in java?

1138

What is the difference between a checked and an unchecked exception?

Cyient,

996

How dead lock situation occurs in java and how you can identify it?

996

What are the various access specifiers in java?

1003

Write a java program for binary search?

1070

Explain the difference between call by refrence and call by value?

1026

Why we use multi threading instead of multiprocessing?

1067

How to write custom exception in java?

Cyient,

1056

Name and explain the types of ways which are used to pass arguments in any function in java.

1079

Explain how hashmap works?

1064

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Un-Answered Questions { Core Java }

What is a constructor, constructor overloading in java?

999

Explain the public class modifier?

956

What is meant by oops concept in java?

998

Can inner class extend any class?

1056

What is the difference between hashset and treeset in java?

1069

Is it safe to install java on my computer?

1143

What are the uses of java?

1093

Hi i am creating desktop application in that i want calling to mobile number. i have java telephone api (JTAPI) but i dont understand how it configure & use plese help me

1853

What is an eror in java?

1054

What is the purpose of java?

1013

What are "methods" and "fields"?

1020

What is difference between checked and unchecked exception in java?

1020

how to create constants in java?

1084

What is callablestatement? How you can call stored procedure to pass in parameter?

1025

Explain the difference between comparator and comparable in java?

956

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