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

Core Java Interview Questions

Questions Answers Views Company eMail

Is a class an object?

1034

Can we create more than one object singleton class?

1059

What is a function in programming?

1059

What is a void method?

937

Can constructor return value?

982

How does callback work in java?

1079

What are the disadvantages of object oriented programming?

1294

What are different types of references?

994

Is a copy constructor?

1072

Can we extend a class with private constructor?

1026

What are the parts of a method?

1000

What does function identity () do?

981

What are the drawbacks for singleton class?

1046

Can private members of a base class are inheritable justify?

943

Is a method a procedure?

1066

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is singletonlist in java?

981

Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?

8134

How many times finalize method will be invoked? Who invokes finalize() method in java?

1034

What is keyset in java?

1091

Is upper case in java?

971

What is immutability in java?

1109

What are void methods?

1038

What is java regex?

1023

What is the use of 'super' keyword inside a constructor?

989

Do you know why doesn't the java library use a randomized version of quicksort?

968

Can we override private methods?

1075

Which category the java thread do fall in?

1016

What is return null in java?

982

What are the differences between string and stringbuffer?

1142

What is the size of an array?

1051

For More Un-Answered { Core Java } Questions Click Here