Core Java Interview Questions
Questions Answers Views Company eMail

Does 'true' and 'false' are keywords?

5 7133

As a developer what steps do you take to improve the performance?

4 5875

Can Applet have constructors?

Infosys,

5 25722

Can an exception be rethrown?

Wipro,

4 11956

Can try statements be nested?

Wipro,

3 7959

Can we access a database using applets?

Hewitt,

2 6373

Can you extend more than one interface?

9 20956

Can you have a constructor in abstract class?

HCL,

18 49138

Can you have an inner class inside a method and what variables can you access?

2 7473

Can you run the product development on all operating systems ?

1 5811

what are Checked & Unchecked exceptions ?

2 7016

What will happens if you opened Internet Explorer 4 times?

2 5047

What is the default modifier in Interface?

5 12566

Define Compiling?

3 5502

Difference between canvas class & graphics class?

1 8565


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Un-Answered Questions { Core Java }

what is meant by abstract class?

625


Who found java?

523


How can you share data between two thread in Java?

505


Which api is provided by java for operations on set of objects?

876


what is meant wrapper classes?

581






What is run time allocation?

552


Is cout buffered?

662


Can anonymous class have constructor?

516


What is difference between hashset and hashmap?

527


What are the different types of sorting in java?

514


What is a databasemetadata?

526


Can we make a constructor final?

513


What is final keyword?

618


Can final class have constructor?

478


Explain about map interface in java?

569