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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 5560

How applets will communicate with each other?

1 3287

What method is used to compare two strings ?

4 7895

How to know the host from which Applet is originated?


1 2516

How to prevent a field from serialization ?

2 8655

How to add panel to a Frame?

5 12505

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

4 5454

How to access a method that it declared as protected?

3 4478

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

3 5435

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

1 3147

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

5 6246

How to display names of all components in a Container?

Microsoft, Wipro,


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

2 5228

What are Inner classes?

4 4711

Is &&= a valid Java operator?

2 11623

Post New Core Java Questions

Un-Answered Questions { Core Java }

What are local variables?


What are the differences between heap and stack memory?


Can we extend a class with private constructor?


Why are the destructors for base class and derived class called in reverse order when the program exits


What is the difference between Java Program Constructor and Java Program Method, What is the purpose of Java Program constructor Please Explain it Breafily?


What is an example of procedure?


Can constructor be synchronized?


What is api in java?


What is the difference between length and size in java?


What's the purpose of static methods and static variables?


How many wrapper classes are there in java?


Explain about class in java?


What is anonymous inner class?


Can a serialized object be transferred via network?


What is preflight request?