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

Core Java Interview Questions

Questions Answers Views Company eMail

Is null an object in java?

1032

What is a boolean flag in java?

1025

What is args length in java?

1169

Does collectionutils isempty check for null?

1414

What is constant in programming?

1104

What is boolean keyword in java?

1126

What is the difference between I ++ and ++ I in java?

977

What is boolean data type in java?

994

What are the types of literals?

1180

Is 0 a real number?

1041

What are the benefits of operations in java?

1041

What is meant by nested loop?

1034

How many bytes is string in java?

1242

Is java a prime method?

981

What are the four integer types supported by java?

1029

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Un-Answered Questions { Core Java }

Distinguish between a predicate and a function?

985

What is close method? How it's different from Finalize & Dispose?

1061

What is the use of flag?

1082

What is the java idl system?

1038

How many threads can java run?

1113

How do generics work in java?

1024

Who found java?

977

Garbage collection in java?

1015

What is method in research paper?

1130

Which package has light weight components?

990

Can we change the scope of the overridden method in the subclass?

1389

What is an exception in java?

1107

What are the escape sequences in java?

1021

What is an immutable object?

1096

What are aggregate functions explain with examples?

1058

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