Friday, May 23, 2014

Pointers of C#.Net Interview Questions(6)


Pointers of C#.Net Interview Questions(6)





1.What is Pointer?
A)Pointer is avariable which stores the address of the another variable.

2.Is Pointers supported in C#.Net?
A)Yes.Pointers supported in C#.Net.The code that has been written using pointers is known as unsafe code.

3.What is Unsafe Code?
A) Unsafe Code means CLR doesnot provide any security for the code.

4.How can we represent unsafe code?
A) unsafe code should be written using “unsafe” keyword within the unsafe block or unsafe function or unsafe class.Unsafe code must be compiled using unsafe option only.

5.How can we declare pointers variable?
A)Syntax: Datatype* variablename;
   EG:int* x;

6.What is the difference between reference types and pointers?
A)Refernce types are maintained by pointers only CLR will provide complete security for the reference types.Where as pointers CLR doesn’t provide any security.

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