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

Core Java Interview Questions

Questions Answers Views Company eMail

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

1 3628

What is the return type of read()?

3 7017

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

2 11502

What for read() function?

3 8909

What happens to the Exception object after handling an exception?

2370

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

3 25242

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

2 4704

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

3 8176

When do you create an index?

2032

When does Exception occurs?

3 6283

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

4 6518

When is an object in the mean to garbage collection?

3 6384

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

2 8623

When finally clause is executed?

3 7413

When try and catch block is used ?

6 9072

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Un-Answered Questions { Core Java }

What is mvc in java?

1013

Give example to differentiate between call by value and call by reference.

1060

What is == mean?

998

What is bean? Where it can be used?

1087

Why do we use predicate in java?

1049

Is singleton a bad practice?

1047

How many ways can you break a singleton class in java?

984

What is foreach loop in java?

1016

What is the default execution method in java?

1200

Implementations of set interface?

1013

Difference between a class and an object?

1037

Can you make a constructor final?

1040

what is the purpose of "virtual"?

1085

What is a predicate method?

1017

Can an anonymous class be declared as implementing an interface and extending a class in java programming?

1282

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