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

Core Java Interview Questions

Questions Answers Views Company eMail

Can a class have an interface?

1006

Can we override the static methods?

1053

What do you understand by an io stream?

1061

What is the purpose of a default constructor?

1109

Can we override the overloaded method?

1166

Can an interface have a class?

1018

Is it possible to instantiate the abstract class?

967

What are the differences between stringbuffer and stringbuilder?

1075

What are the advantages of encapsulation in java?

1026

What are the restrictions that are applied to the java static methods?

1006

Can you declare an interface method static?

1074

What are the advantages of java inner classes?

1083

Will the jvm load the package twice at runtime?

1112

Can we make constructors static?

1251

If I don't provide any arguments on the command line, then what will the value stored in the string array passed into the main() method, empty or null?

1269

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Un-Answered Questions { Core Java }

What are the advantages of java?

1004

What is meant by structural programming?

1031

How to handle a web browser resize operation?

1093

What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?

1127

What is function and method in java?

964

What is a generic code?

1078

Why do we declare a class static?

1179

What is meant by 'bit masking' in java?

1204

Why do we use string?

1075

What is balanced tree in java?

986

What classes of exceptions may be thrown by a throw statement?

985

Is array dynamic in java?

945

Differentiate between a constructor and a method? Can we mark constructors final?

1207

What does 0 mean in boolean?

993

What is an object’s lock and which object’s have locks?

978

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