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Core Java Interview Questions
Questions Answers Views Company eMail

briefley expalin about the packages

 3 3933

explain about method overloading and method overriding with difficult examples

 4 6513

explain the concept of virtual method invocation in polymorphism in detail?

TCS,

1955

Addition to previous section relative word 5th one was Putrid ans: rotten, also there was prob. in 1st section on bucket weight ans:10kg, also there was a prob. on train speed to find bridge length ans:800 mtrs.

V2 Solutions,

1849

we have a 100 classes at that time which class we have to write main method? pls help me

Wipro,

6 7195

class A { public void disp(int a,int b) { System.out.println("hai"); } } class B { public void disp(int a,int b,int c) { System.out.println("hai"); } } above program is overloading or overriding?

Infosys, Wipro,

9 12471

where to use join method and explain with real time senario?and programatical explenation also..

TCS,

1 4489

In a container there are 5 components. I want to display all the component names, how will you do that?

 1887

What is the exact difference in between Unicast and Multicast object?

 1782

Where will it be used?

 1721

What is the main functionality of the remote reference layer?

 1672

How do you download stubs from Remote place?

 1551

I want to store more than 10 objects in a remote server? Which methodology will follow?

 2891

What is the main functionality of Prepared Statement?

 4 6949

What is meant by Static query and Dynamic query?

 2 6077

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Un-Answered Questions { Core Java }

What is the difference between static (class) method and instance method?

817

Is list thread safe in java?

720

What is externalizable?

847

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

771

What do you mean by exception handling in Java?

1002

What is the longest unicode character?

907

What are peerless components in java programming?

792

What is oops in java?

781

What are the methods available in a class?

837

What is difference between null and void?

744

What is the argument in java?

706

What is double checked locking in singleton?

832

How many JVMs can run on a single machine and what is the meaning of Just-In-Time (JIT) compiler?

1045

What is the purpose of garbage collection in java? When is it used?

825

Does constructor be static?

798

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