Core Java Interview Questions
Questions Answers Views Company eMail

briefley expalin about the packages

3 3898

explain about method overloading and method overriding with difficult examples

4 6466

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

TCS,

1934

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,

1827

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

Wipro,

6 7126

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 12385

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

TCS,

1 4463

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

1854

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

1764

Where will it be used?

1705

What is the main functionality of the remote reference layer?

1653

How do you download stubs from Remote place?

1533

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

2880

What is the main functionality of Prepared Statement?

4 6901

What is meant by Static query and Dynamic query?

2 6034


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Un-Answered Questions { Core Java }

What design pattern you have used in your project? I answered Factory pattern, how it is implemented? What are its advantage? Do know about Abstract Factory?

2203


Does isempty check for null?

770


What is the purpose of return statement?

824


What is the purpose of the strictfp keyword?

843


What is the difference between pass by reference and pass by pointer?

709


What is the purpose of a default constructor?

826


Can you declare the main method as final?

725


How to connect to a remote database using Applet?

2250


What is the difference between procedural and object-oriented programs?

727


What are thread local variables?

774


What do you mean by buffering?

769


Difference between stack and queue?

799


How long will it take to learn java?

735


What does java ide mean?

836


Why do people says “java is robust”?

766