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,

1036

What is jvm? How its run?

1087

Define inheritance with reference to java.

1091

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

964

How can we create a synchronized collection from given collection?

1085

How to avoid memory leak in java?

1139

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?

997

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,

1057

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

1079

Explain how hashmap works?

1065

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Un-Answered Questions { Core Java }

What are conditionals and its types?

1146

Difference between default and protected access specifiers?

1125

How do you make an arraylist empty in java?

929

What is the basic difference between string and stringbuffer object?

1088

Is a class subclass of itself?

1088

How to make a read-only class in java?

1165

What is a vector in java?

1033

How to perform selection sort in java?

1000

List any five features of java?

1031

In java how do we copy objects?

1052

Can the interface be final?

1010

What are the actions that can occur when a thread enters blocked state?

1058

What is http client in java?

1090

What is unicode with example?

1216

What is lambda programming?

1011

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