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?

1045

What is a boolean flag in java?

1046

What is args length in java?

1187

Does collectionutils isempty check for null?

1439

What is constant in programming?

1127

What is boolean keyword in java?

1144

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

997

What is boolean data type in java?

1006

What are the types of literals?

1208

Is 0 a real number?

1063

What are the benefits of operations in java?

1070

What is meant by nested loop?

1048

How many bytes is string in java?

1264

Is java a prime method?

997

What are the four integer types supported by java?

1043

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Un-Answered Questions { Core Java }

What is variable in java?

997

Can you achieve runtime polymorphism by data members?

1160

What is __ init __ functions?

1142

What is a instance variable?

1074

What are the 8 data types in java?

1015

Why main() method is public, static and void in java ?

1118

What is string made of?

971

Is string is a class in java?

978

can any body body expalin best definitions & best real time exaples for opps concepts.

2287

How do you test a method for an exception using junit?

1225

What do you understand by final value?

1079

What does the @override annotation do?

1055

When will you define a method as static?

1106

What is variable and constant explain with example?

1107

What languages are pass by reference?

1067

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