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Core Java Interview Questions
Questions Answers Views Company eMail

briefley expalin about the packages

3 2680

explain about method overloading and method overriding with difficult examples

4 4940

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

TCS,

1481

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,

1354

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

Wipro,

6 5391

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 9882

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

TCS,

1 3510

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

1291

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

1270

Where will it be used?

1229

What is the main functionality of the remote reference layer?

1190

How do you download stubs from Remote place?

1130

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

2413

What is the main functionality of Prepared Statement?

4 5481

What is meant by Static query and Dynamic query?

2 5178


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Un-Answered Questions { Core Java }

Does java trim remove newline?

326


What are the important methods of java exception class?

355


Is hashset ordered java?

341


What is multi-catch block in java?

390


How can you share data between two thread in Java?

326






How do you implement polymorphism in our day to day life?

2535


Explain purpose of sleep() method in java?

377


What is the function of log?

324


What are jee technologies?

311


Is there a case when finally will not execute?

338


What are java packages? What's the significance of packages?

345


Is string a class?

342


What is hashtable and explain features of hashtable?

340


Explain java coding standards for variables ?

408


what methods would you overwrite in java.lang.object class?

323