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,

997

What is jvm? How its run?

1030

Define inheritance with reference to java.

1042

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

920

How can we create a synchronized collection from given collection?

1057

How to avoid memory leak in java?

1090

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

Cyient,

943

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

950

What are the various access specifiers in java?

967

Write a java program for binary search?

1015

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

990

Why we use multi threading instead of multiprocessing?

1014

How to write custom exception in java?

Cyient,

1023

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

1029

Explain how hashmap works?

1024

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Un-Answered Questions { Core Java }

How do I remove a character from a string in java?

933

How many bits is a string?

958

what is the difference between Object Based Language and Object Oriented Language?

995

What do you mean by aggregation?

1233

Why is string buffer better than string ?

1055

Why super is first line in java?

1013

How do I convert a numeric ip address like 192.18.97.39 into a hostname like java.sun.com?

972

How is a variable stored in memory?

950

How does map works in java?

950

What is the maximum size of array in java?

945

What data type is true or false?

1000

Is hashset sorted in java?

1136

What does 0 mean in boolean?

943

What is meant by method?

1033

Is binary a low level language?

880

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