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

Core Java Interview Questions

Questions Answers Views Company eMail

Can a java program have 2 main methods?

1047

Can we override data members in java?

1139

Can we override private constructor in java?

970

Is main is a keyword?

996

What is the difference between keyword and identifier?

1023

What is null statement?

1007

What are keywords give examples?

1050

How many bits is size_t?

984

What is the different types of functions?

1055

What is the unit of plancks constant?

1045

What are keywords in programming?

1009

What does void * mean?

1029

Can an object be null?

963

What does sizeof return?

983

What is the this keyword?

1025

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Un-Answered Questions { Core Java }

What do you mean by aggregation?

1313

How to overcome the exception object reference not set to an instance of object?

1146

What is n in java?

945

Is empty string in java?

1171

Where import statement is used in a java program?

1122

What is re-factoring in software?

1048

Write a function to find out longest palindrome in a given string?

1050

What is data type in java?

900

How is hashset defined in java?

1033

What do you mean by hashing?

1101

What are adapter classes?

1044

How many types of operators are there?

979

Why java is made?

964

Why java strings are immutable in nature?

1060

What is the difference between a static and a non-static inner class in java programming?

1065

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