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

Core Java Interview Questions

Questions Answers Views Company eMail

What are the loops in java?

987

How to use arraylist in java netbeans?

1042

Why collection is called framework in java?

990

How to print an arraylist in java?

1084

Why vector is used in java?

1025

Why set do not allow duplicates in java?

1100

Is vector synchronized in java?

998

Can set contain duplicates?

996

Can we create our own daemon thread?

981

Why stringbuilder is not thread safe in java?

1015

Is string is a keyword in java?

975

Why are lists ordered in java?

1010

How to split arraylist elements in java?

1171

Why set is used in java?

1018

How to access arraylist elements in java?

991

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Un-Answered Questions { Core Java }

5 Coding best practices you learned in java?

1015

What is illegal identifier in java?

1014

Explain list interface?

960

Can java list be null?

997

What is the purpose of interface?

1007

What is the difference between iterator and enumeration ?

1005

What is the purpose of declaring a variable as final?

970

What are the differences between checked exception and unchecked exception?

965

Can we have return statement in finally clause? What will happen?

964

how we can make a write-only class in java?

1026

What are the types of casting?

1065

What is garbage collector?

1082

Can a class be a super class and a sub-class at the same time? Give example.

1563

Which method returns the length of a string?

1036

What is double data type?

945

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