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 about static nested classes in java?

1159

What are static blocks in java ?

1122

What about method local inner classes or local inner classes in java?

1071

Explain notifyall() method of object class ?

1098

What access modifiers can be used for methods?

1121

Is there a way to increase the size of an array after its declaration?

1067

What about anonymous inner classes in java?

1051

String and stringbuffer both represent string objects. Can we compare string and stringbuffer in java?

985

If an application has multiple classes in it, is it okay to have a main method in more than one class?

1027

What about member inner classes?

1115

What about instanceof operator in java?

1036

Can we use different return types for methods when overridden?

1013

What is runtime polymorphism or dynamic method dispatch?

1020

Why is java architectural neutral?

1119

Which of the classes will have more memory allocated?

992

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Un-Answered Questions { Core Java }

Discuss about garbage collector in Java.

1093

What are namespaces in java?

1052

What is volatile data type?

1024

How do you sort arrays in java?

940

Which one will take more memory: an int or integer?

1254

Can you instantiate the math class?

1077

How do you clear an arraylist in java?

995

What technique is carried out to find out if a particular string is empty?

1032

What are synchronized methods and synchronized statements in java programming?

1033

What is math in java?

1077

How long will it take to learn java?

1008

what state does a thread enter when it terminates its processing? : Java thread

1063

What is deserialization?

1041

How to perform merge sort in java?

1072

How can you make a class serializable in java?

1006

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