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 are the differences between this and super keyword?

963

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

1 1410

Why are the objects immutable in java?

1002

Can we modify the throws clause of the superclass method while overriding it in the subclass?

1051

How can you avoid serialization in child class if the base class is implementing the serializable interface?

1096

Can you make a constructor final?

1058

How can constructor chaining be done by using the super keyword?

1103

What do you understand by copy constructor in java?

946

What is the final blank variable?

1156

Can the interface be final?

1028

Give the hierarchy of inputstream and outputstream classes.

1118

What is a nested class?

1137

Can we assign the reference to this variable?

993

Why is the main method static?

1175

What is the transient keyword?

4 2220

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Un-Answered Questions { Core Java }

How do you start a new line in java?

999

What are the various access specifiers in java?

1020

How can we find the sum of two linked lists using stack in java?

1173

What are the differences between heap and stack memory in java?

1071

How do you create a bulleted list?

1270

What is purpose of keyword void?

1063

What is the use of keywords in java?

997

what is predefined function in java?

992

What are the disadvantages of object oriented programming?

1292

What are the types of web technologies?

1056

What is thread safe in java?

1004

What is static keyword?

1169

Explain about collection interface in java?

999

What are the difference between composition and inheritance in java?

1043

Is main a function?

1066

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