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

Core Java Interview Questions

Questions Answers Views Company eMail

A class can be a subclass of itself?

Genesis,

2 10530

Are nested try statements are possible?

2 5180

Is multiple inheritance allowed in Java? Why ?

7 11883

Is 'null' a keyword?

8 9884

Is 'sizeof' a keyword?

7 17687

Does any tag exists in HTML to upload and download files ?

3 8247

Are there any tools available in java to create reports?

5 9307

Explain Connection Pooling?

3 9030

What classes can be used to store arbitrary number of objects ?

1 4101

Can you give names of Container classes?

Ordain Solutions,

2261

What are the names of interfaces that doesn't consists of method/s ?

3 7614

What primitive Java types? Howmany are they and what are their names?

3 5661

What are the names of Component subclasses that support painting?

1 3686

What are teh sub-classes of a component class?

2 4903

Name two subclasses of the TextComponent class?

2 6806

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Un-Answered Questions { Core Java }

What is the difference between jfc & wfc?

1015

How can constructor chaining be done by using the super keyword?

1040

What is main method?

997

What is a default constraint?

1019

What is default exception handling in java?

977

What is ++ a in java?

927

What are 3 data types?

925

List two java ide’s?

992

What is the use of static class?

1089

What is use of valueof () in java?

1001

What is difference between variable declaration and definition?

916

What are accessor methods in java?

953

Explain scope or life time of local variables in java?

970

What is length in java?

962

What does localhost mean?

887

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