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Core Java Interview Questions
Questions Answers Views Company eMail

How do you achieve singleton?

994

Can we use static class instead of singleton?

1068

What is a singleton in genetics?

1099

Can we extend singleton class in java?

983

What does singleton mean in java?

1013

How many ways can you break a singleton class in java?

1003

Can I extend singleton class in java?

1131

What is a singleton factory?

985

Can we clone singleton object?

1086

What is a pattern what is an anti pattern?

998

Why is singleton not thread safe?

1069

What does this () mean in constructor chaining concept?

1147

What are thread safe functions?

967

What is not thread safe?

1006

What are the pillars of java?

939


Post New Core Java Questions

Un-Answered Questions { Core Java }

What are the features of junit?

1061


What is private protected in java?

1065


What is the protected method modifier?

1063


what is meant by abstract class?

1143


What are the features of java?

1102


What is the purpose of abstract class?

1027


What is the best definition for data?

991


What is meant by local variable and instance variable?

1036


What is compiler and what its output.

1164


Why does it take so much time to access an applet having swing components the first time?

1952


What is this keyword in java?

1053


Can a string be null?

1003


Are there structures in java?

988


How can we make string upper case or lower case?

1097


Can we create an object if a class doesn't have any constructor ( not even the default provided by constructor ) ?

1111