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

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