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Core Java Interview Questions
Questions Answers Views Company eMail

What is the use of collections in java? How it is implemented in real time applications?

 2 11142

1.) if we use "private" in place of "public" in public static void main()... 2.) if we use "int" in place of "void".... 3.) can we ommit "static" keyword from that statement.... 4.) also can we give the command line arguments type as int type or float,etc.(.i.e (string args[]))

 1 5858

WHAT IS THE SCOPE FOR COREJAVA...? IS JAVA ONLY CORE JAVA ?

 2 8692

difference between jsp and java script?

 3 4596

When you declare a method as abstract method ?

HP,

2 6016

What is JVM ?

Phantom Technologies, TCS,

4 5448

Why do we need public static void main(String args[]) method in Java...?

 1 4300

What is the difference between constructor and method?

 4 5348

What is the difference between parameters and arguments ?

2 4204

What is the difference between Java Bean and Java Class.?

 2 4471

What is the purpose of a statement block?

 1 3516

Can an unreachable object become reachable again?

 3 4309

String Reverse in Java...!

 5 7390

what difference between throw and throws in exception handling.

 5 6550

How to excute - Interface - Inner class- method can any one tell how to execute/ call this main method public interface abc { static int i=0; void dd(); class a1 { a1() { int j; System.out.println("inside"); }; public static void main(String a1[]) { System.out.println("in interfia"); } } }

 1 3303

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Un-Answered Questions { Core Java }

Why java is used everywhere?

584

Explain the selection sort algorithm?

635

What's the base class in java from which all classes are derived?

735

Is heap stored in ram?

518

How many bytes are a float?

501




what is the constructor and how many types of constructors are used in java?

531

What is the main functionality of the remote reference layer?

1409

What happens when I use / and % with a negative numerator?

535

What is the default execution method in java?

617

What is an example of declaration?

516

Can we write method inside a method in java?

519

Can you call a method in a method?

524

Differentiate between stringbuffer and string?

589

What package is math in java?

529

Explain the different forms of polymorphism?

559

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