Class Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Class

Class Interview Questions

Questions Answers Views Company eMail

In real time project when will we use Abstract class. and what are the difference between abstract and interface.

DELL, FCS, Polaris, Tanla Solutions, TCS,

6 22641

How can you create an object of a class in a package?

IBM,

4 8914

What is Ideal Design of Class?

2 4962

suppose A is a base class and B is the derved class. Both have a method foo which is defined as a virtual method in the base class. You have a pointer of classs B and you typecast it to A. Now when you call pointer->foo, which method gets called? The next part of the question is, how does the compiler know which method to call?

EA Electronic Arts,

3 9720

Can we have private constructor in our class file. When we are trying to create instance for the class will it create or throw error regarding that?

5 8337

class A{ some variables; public void a()throws Excepion1,Exception2{....} } class B extends A{ variables... public void a()throws E2,E3{.....} } Qns: here override of methods occurs or not,ore else wil give any compilation error or run properly..plz tell me briefly whts happening with the above codes....

Quinnox,

4 8767

can onyone tell me , how many data classes and size categories are there ?

2 5509

can we write any interective or classical reports in alv reports if yes how?

2 8902

what is class/object diagram

Zycus Infotech,

3 13180

can u draw class/object diagram for ATM

HCL, Zycus Infotech,

6121

How to change the development class of any object?

HCL,

2 6895

Which keyword you should use for class not to extend? Which keyword to be used for making the class accessible within the assembly only what are the authentication mode of ASP.NET How will you call a JavaScript function using code-behind? How will you define the Session Timeout? What are the methods to validate client-side whether the input is a correct Date format? You want to write a log when ASP.NET application starts. Which is the best place to write that peice of code? What are the page load events and what is there order? What is the difference between abstract class and interface? What are the differences between DataSet and DataReader? What are the two properties other than DataSource, which is required to populate the Drop Down Menu? What is difference between String and StringBuilder Classes? What are differences between Custom control and User control?

Ignis Technologies,

1 4868

can we create object for static class in java

IAP Company, IBM, Marlabs, mPortal, TCS,

14 49148

How can i include both C# and vb.net classes in same solution?

2 5335

what is an anonymous class?

TCS,

6 9094