Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Write a program to reverse array in place?

1072

Why wait and notify methods are declared in object class?

1041

Explain the difference between serializable and externalizable in java?

1070

What is difference between wait and notify in java?

1145

What is difference between path and classpath in java?

1029

Explain the difference between transient and volatile in java?

1005

Explain the difference between string, stringbuffer and stringbuilder in java?

1010

Explain the difference between static and dynamic binding in java?

1070

Explain the difference between arraylist and linkedlist in java?

990

Write java program to reverse string without using api?

1067

Write a java program to print fibonacci series?

957

Difference between association, composition and aggregation?

993

Explain the difference between comparator and comparable in java?

963

Explain the difference between runnable and callable interface in java?

1056

What is difference between synchronize and concurrent collection in java?

1076

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Un-Answered Questions { Core Java }

What is supplier in java?

1005

Why is java architectural neutral?

1114

Differentiate between array list and vector in java.

1121

What is encapsulation in java?

1116

What is early binding and late binding in java?

1194

What are java annotations?

1167

What is the purpose of using break in each case of switch statement?

1029

Can we override tostring method in java?

973

What does n mean in java?

974

Can the garbage collection be forced by any means?

993

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1701

What is return code?

1010

What is difference between final and immutable?

1150

5 Coding best practices you learned in java?

1018

What are the different types of inheritance in java?

991

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