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

Core Java Interview Questions

Questions Answers Views Company eMail

Which class should you use to obtain design information about an object in java programming?

1085

What is the difference between a window and a frame in java programming?

1144

How can you write a loop indefinitely in java programming?

1037

What invokes a thread's run() method in java programming?

1197

What must a class do to implement an interface in java programming?

1069

When can an object reference be cast to an interface reference in java programming?

1029

Give few difference between constructor and method?

974

What is the difference between stored procedure & function?

977

What is meant by data hiding/encapsulation?

Cyient,

1108

What is the difference between super class & sub class?

1201

What is meant by attribute?

1132

What is meant by interface?

1064

What is the difference between form & report?

1043

What is the difference between class & object?

1024

What is meant by final class?

1122

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Un-Answered Questions { Core Java }

Name the components that are termed to be Heavy-weight component but available in Light-weight components?

2491

What is an argument java?

978

Why java is platform independent? Explain.

1013

How do you bind variables?

1113

Which is the best approach for creating thread ?

1218

Is intellij better than eclipse?

1097

Are arrays immutable in java?

1096

What is a boolean field?

966

What is a stack class in java ?

1110

What is the difference between public, private, protected, and friend access?

1049

What is json parser in java?

1065

How do you use substring in java?

1146

What is the full form of jpeg?

965

How to restrict a member of a class from inheriting by its sub classes?

1354

Does treeset allow null in java?

964

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