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

Core Java Interview Questions

Questions Answers Views Company eMail

Explain covariant method overriding in java.

1124

Enlist diffrent types of inheritance supported by java?

929

Which one of the following suits the description of a string better: derived or primitive?

967

What is the technique adopted to create an immutable class?

1128

List some features of the abstract class.

1083

What do you understand by the term singleton?

1007

Differentiate between == and equals().

1065

What is the difference between inheritance and encapsulation?

1162

What methodology can be utilized to link to a database?

980

What methodology can be employed to locate substrings inside a string?

977

Explain inheritance in java?

1007

What do you understand by the term string pool?

1033

Enlist few advantages of inheritance?

1088

How many techniques can be employed to create a string object?

1126

Differentiate between stringbuffer and string?

1040

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Un-Answered Questions { Core Java }

What is string value?

1180

What is string data?

996

What are the special characters?

986

How objects are stored in java?

1050

What does string [] args mean?

1027

What are the types of sockets in java?

1170

Is null function in java?

1062

What are the principle concepts of oops?

982

What is api data?

1018

What data structures are used to perform recursion?

1071

Lowest Common ancestor in a Binary Search Tree and Binary Tree.

945

What is the difference between an if statement and a switch statement?

1177

What is off heap memory?

1019

What is the final method?

1087

Can we extend private class in java?

994

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