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Core Java Interview Questions
Questions Answers Views Company eMail

How many times garbage collector will invoke an object?s finalize() method?

 4 6033

How applets will communicate with each other?

 1 3547

What method is used to compare two strings ?

 4 8462

How to know the host from which Applet is originated?

Wipro,

1 2749

How to prevent a field from serialization ?

 2 9058

How to add panel to a Frame?

 5 13014

How can a class be accessed, If no access modifiers are declared?

 4 6071

How to access a method that it declared as protected?

 3 4855

How to access a variable if it is declared as private?

 3 5848

How to re-get an object that is collected by garbage collector?

 1 3365

What we have to do, when we don't want to implement all methods of an interface?

 5 6793

How to display names of all components in a Container?

Microsoft, Wipro,

2482

Name the package that most of the AWT events that supports event-delegation model are defined?

 2 5559

What are Inner classes?

 4 5353

Is &&= a valid Java operator?

 2 12211

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Un-Answered Questions { Core Java }

What is a modifier?

851

How do you reverse sort a list in java?

500

How do you know if a value is nan?

556

What is private static in java?

569

What is the java virtual machine?

572




How to find the largest value from the given array.

516

Difference between linkedlist and arraylist.

580

What is object in java?

521

What are the rules for naming an array?

518

What means public static?

554

Is there any difference between nested classes and inner classes?

528

What is passing parameters in java?

509

What are the special characters?

529

Is java se open source?

559

How a string is stored in memory?

569

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