Answer Posted / arvind nagar

Interface is mainly use to apply restrictions in accesing
the members.
For eg.-
using System;
Interface Sales
{
Void prediction();
}
Interface Hr
{
Void SalayInfo();
}
Class Abc:Sales,Hr
{
Public void Pediction()
{
x.WriteLine("Sales for 2008 will 2000 laptops");
}
Public void SalryInfo()
{
x.WriteLine("Salary is going to increment by 30%");
}
Public void Hello()
{
x.WriteLine("Hello frnds");
}
}
class test
{
public static void main()
{
Hr a= new Abc();
a.SalaryInfo();
}
}

O/p-- Salary is going to increment by 30%.
Suppose we wish to access the Hello() function, then we
can't access the a.Hello();--it gives error.
b'coz Hr doesn't contain a
definition of Hello.

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