.NET - Object-Oriented Programming

Structure is a heterogeneous collection of elements referenced by the same name. A structure is declared using the struct keyword. The following is an example that creates a structure to store an employee's information:

struct emp
{
 fixed int empID[15];
 fixed char name[30];
 fixed char addr[50];
 fixed char dept[15];
 fixed char desig[15];
}

The preceding example defines a structure emp and the members of this structure specify the information of an employee.

We define abstract classes when we define a template that needs to be followed by all the derived classes.