Write a program to print the absolute value of the number.

Absolute number is:

   number --> if number is positive.

   0 number --> if number is Zero.

   -number --> is number is negative.

Expiation of the code:

1.You have take a integer number as user-input.
2.Check the following condition:
- number is greater than zero.
- number is equal to zero.
- number is smaller than zero.
3.Run the code and enjoy it...