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 is hashing principle in java?

1023

What is time complexity java?

991

Which is faster set or list in java?

1029

What is size () in java?

1091

What is a key in java?

976

What is import java util arraylist?

1179

Why we go for collections in java?

973

What is arraylist class in java?

1057

What is java util concurrentmodificationexception?

910

What is thread safe java?

914

What is fail first in java?

1189

What is the difference between length and size in java?

988

What is the maximum size of array in java?

981

What does index mean in java?

992

What is complexity in java?

1024

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Un-Answered Questions { Core Java }

What are the rules for naming an array?

1055

Can I learn java without any programming experience?

1036

Will minecraft java be discontinued?

1161

What is a boolean field?

956

What is treemap in java?

940

What is an abstract method in java programming?

1040

How can an exception be thrown manually by a programmer?

995

What is public static?

1029

Whats the difference between notify() and notifyall()?

1036

Difference between method overloading and overriding.

1077

What is thread safe in java?

988

Why is singleton not thread safe?

1044

Can you make a constructor final in Java?

1128

Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.abcd compile?

1103

Is java developer a good career?

1016

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