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.

1106

Enlist diffrent types of inheritance supported by java?

918

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

953

What is the technique adopted to create an immutable class?

1114

List some features of the abstract class.

1069

What do you understand by the term singleton?

997

Differentiate between == and equals().

1049

What is the difference between inheritance and encapsulation?

1151

What methodology can be utilized to link to a database?

967

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

959

Explain inheritance in java?

994

What do you understand by the term string pool?

1011

Enlist few advantages of inheritance?

1075

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

1107

Differentiate between stringbuffer and string?

1030

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Un-Answered Questions { Core Java }

What is lambda programming?

1011

How can u increase the heap size in the memory?

1020

Write code of any action class?

1017

take an array with -ve and +ve value both.find out the nearest value of 0(zero).if two values are same like(-2 and +2)then extract +2 is nearest of 0(zero).

1982

Can a static method be overridden in java?

1021

Can we call a non-static method from inside a static method?

998

How do you clear a method in java?

1008

How many tetrahedral voids are there in bcc?

1097

Where are register variables stored?

1018

Which types of exceptions are caught at compile time?

1036

Differentiate between nested and inner class in java.

1003

Why does java not support operator overloading?

1141

What is difference between jdk,jre and jvm?

1125

What is implicit object in java?

1082

What are the types of web technologies?

1044

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