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 do you mean by ordered and sorted in collections in java?

953

Why java is called not pure object oriented language?

979

List some important features of java 10 release?

994

What do you mean by garbage collection used in java?

1022

Why does java does not support multiple inheritance? Explain

939

what do you mean by marker interface in java?

933

What is difference between classpath and path variables in java?

1149

Explain the difference between jvm and jre?

991

What do you mean by composition in java?

959

What do you mean by inner class in java?

1028

How we can run a jar file through command prompt in java?

920

List the different types of classloaders in java.

934

What are different access specifiers in java? Explain

1072

Why we used break and continue statement in java?

1081

What is an interface in java? Explain

1106

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Un-Answered Questions { Core Java }

What is a final class ?

1098

explain the difference between jdk and jvm?

941

What is a methodologist?

1006

What is skeleton and stub?

1002

Can we print null in java?

1015

What is the constructor?

1001

What modifiers may be used with an inner class that is a member of an outer class in java programming?

1037

Can java object be locked down for exclusive use by a given thread?

964

What is a byte array?

1057

What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?

934

Can we have any other return type than void for main method?

912

Can we override a variable in java?

957

What does mean in regex?

1000

How many types of threads are there in java?

1009

What is a protected method?

1090

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