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 use of inner class in java?

1239

What is local class in java?

1146

What are the classes of java?

1018

Is singleton thread safe in java?

1021

Can memory leak in java?

1086

Can a static method be overridden in java?

1059

What is an anonymous class in java?

1162

What is package private scope in java?

994

Can we extend private class in java?

1023

What is adapter in java?

972

Can a class be private or protected in java?

1110

How do you override a private method in java?

1028

Why we use protected in java?

1023

What is private static class in java?

1061

What if constructor is protected in java?

1196

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Un-Answered Questions { Core Java }

How many ways can an argument be passed to a subroutine and explain them?

1078

Do you know how to reverse string in java?

1215

Can we convert integer to string in java?

1093

Can bool be null?

1031

which class is the wait() method defined in? : Java thread

996

Do I need to import java.lang package any time? Why?

1456

What is the exact difference in between Unicast and Multicast object?

2191

What is a consumer in java?

1071

What does \ mean in regex?

1318

What is a pattern what is an anti pattern?

1033

What is the set interface in java programming?

1289

Explain a few methods of overloading best practices in java?

1020

Explain serialization and deserialization in java?

1042

Is alive method in java?

1038

What is a private class in java?

1121

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