Scope of Variables in C#

The scope of the Variable is the region of code within which the variable can be accessed. It depends on the type of the variable and the 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