Core Java Interview Questions
Questions Answers Views Company eMail

What are the standards to place package statement within a source code file?

1 2801

What is the return type of read()?

3 5801

What is the return type of readLine() when end of a file is reached?

2 10609

What for read() function?

3 7733

What happens to the Exception object after handling an exception?

1791

What is stop(), suspend(), resume() method?

3 23868

What are MalformedURLException and UnknownHost Exceptions and whey they will be thrown?

2 3604

Under what circumstances an object reference be cast to an interface reference?

3 6871

When do you create an index?

1550

When does Exception occurs?

3 5075

In what circumstances, compiler will supply a default constructor for a class?

4 5039

When is an object in the mean to garbage collection?

3 4923

What are init(), start() methods and whey they are called?

2 7665

When finally clause is executed?

3 6265

When try and catch block is used ?

6 7053


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Un-Answered Questions { Core Java }

Explain the difference between association, aggregation and inheritance relationships.

525


What does index mean in java?

511


What is contractor means and methods?

534


Define inheritance?

529


How do you achieve singleton?

500






What is ‘is-a ‘ relationship in java?

561


What are the 5 types of research methods?

569


What one should take care of, while serializing the object?

460


What is garbage collection? What is the process that is responsible for doing that in java?

623


how to create daemon thread in java?

580


Give reasons supporting that string is immutable.

474


Are maps ordered java?

484


what is a working thread? : Java thread

532


What is int argc char * argv?

542


What do you mean by local variable and instance variable?

492