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?

1085

Why vector is used in java?

1025

Why set do not allow duplicates in java?

1101

Is vector synchronized in java?

999

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?

976

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?

992

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Un-Answered Questions { Core Java }

What are the differences between checked exception and unchecked exception?

965

Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

988

What is a JAR file?

1044

Can we execute a program without main?

1023

Can classes declared using the abstract keyword cab be instantiated?

1048

What is difference between java and java ee?

1027

What is the primitive type short?

1019

What are the new features in java 8? Explain

950

What is the purpose of interface?

1007

What are synchronized methods ?

1114

Why collection doesn’t extend cloneable and serializable interfaces?

1103

What is continuity of a function?

1094

Why we use set in java?

1002

What does I ++ mean?

1063

What is the difference between comparison done by equals method and == operator?

1024

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