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Core Java Interview Questions
Questions Answers Views Company eMail

Can we declare variables inside a method as Final Variables?

 3 11131

Can you call a constructor within a constructor?

 7 13818

Can you declare a static variable in a method?

 7 15088

How the elements are organized in GridLayout?

 2 4206

How are this and super used?

IBM,

7 9739

How are this() and super() used with constructors?

 9 17266

Without creating a new object, How you can retrieve a String or other object?

 1 4580

How GUI component handle its own events?

 1 4469

How you can create a radio buttion using Checkbox class?

 1 4176

Can an unreachable object become reachable again?

DELL,

3 20213

Can applet in different page/s communicate with each other?

 1 3975

How to add and remove nodes in Jtree?

 1 2543

What is deadlock and how to avoid this?

 2 5507

How to avoid the runtime exception ?

 2 8780

How the elements are organized in BorderLayout?

 5 6473

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Un-Answered Questions { Core Java }

What is the collections api?

577

Distinguish between a predicate and a function?

576

What is a static method in java?

543

How do you insert a line break?

500

Is java still necessary?

623




What is the difference between throw and throws keywords?

579

What is class and object in java?

559

What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?

592

What is the char data type?

529

What’s the difference between the methods sleep() and wait()?

543

What will be the initial value of an object reference which is defined as an instance variable?

647

Can we write any code after throw statement?

613

Write a program to check for a prime number in java?

564

What is methodological framework?

577

what is meant by HQL?

645

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