Scope of Variables in C#

Scope of Variable is the region of code within which the variable can be accessed. It depends on the type of the variable and place of its declaration. In C#, there are several types of variables:

Static Variables

Instance Variables

Local Variables

Array Elements

Value Parameters

Reference Parameters

Output Parameters

class Test
{
  static int p;
  int n;
  void display(int x, ref int y, out int z, int [] a)
{
  int q=25;
  ...... 
  ......
}
}

p as a static variable

n as an instance variable

x as a value parameter

y as a reference parameter

z as an output parameter

a[0] as an array element

q as a local variable