Core Java Interview Questions
Questions Answers Views Company eMail

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

4 6029

How applets will communicate with each other?

1 3543

What method is used to compare two strings ?

4 8458

How to know the host from which Applet is originated?

Wipro,

1 2746

How to prevent a field from serialization ?

2 9049

How to add panel to a Frame?

5 13014

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

4 6063

How to access a method that it declared as protected?

3 4849

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 3361

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

5 6788

How to display names of all components in a Container?

Microsoft, Wipro,

2480

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

2 5555

What are Inner classes?

4 5344

Is &&= a valid Java operator?

2 12208


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Un-Answered Questions { Core Java }

What is the difference between menuitem and checkboxmenu item?

764


How do you represent a space in regex java?

513


What are static blocks in java ?

603


What are the restrictions that are applied to the java static methods?

515


Explain about the interpreter in java?

617






What is basic syntax?

537


Is age a discrete variable?

518


How would you format a date in java? I.e. In the ddmmyyy format?

757


What is the advantage of preparedstatement over statement?

547


What is the purpose of the runtime class in java programming?

553


What do you understand by garbage collection in Java? Can it be forced to run?

542


Which is the best sorting technique in java?

510


Is linkedlist thread safe in java?

548


How do I type unicode?

520


What is quick sort in java?

543