What is pointer variable

 Pointer :

1]  "A pointer is variable that holds address of another variable.

2] " * " symbol is used to declared the pointer variable".

3] Every pointer variable is associated with the variable,which is pointer by it.

4] syntax:

                  data_type * variable_name;

                  Int * ptr;

5] The above declaration shows a pointer variable ptr, which will hold the address of an "int"