Simple calculator program VC# 2008(Console Application)

See more:

C#

Hi
This is Roger.I dont have pretty good idea on .NET.Could any one please help me in coding a simple calculator program in VC# 2008(Console application).This is very much urgent.I am reading the stuff related to .Net but I am not able to implement that in the programming.

Specification

Requirement
In this you are to prepare a C# program that will act as a simple calculator. The
calculator will be run from the command line and will only work with integer numbers and
the following arithmetic operators + - * / %. The % operator is the modulus operator, not
the percentage.
For example, if the C# program is compiled to calc.exe, the following demonstrates how it
will work
calc 3 + 5 - 7
1
In the command line, the arguments are a repeated sequence in the form
number operator
and ending in a
number
Hitting the enter key will cause the program to evaluate the arguments and print the result. In
this case 1.
The program must follow the usual laws of arithmetic which says
1. The * / and % operators must all be evaluated before the + and – operators.
2. Operators must be evaluated from left to right.
For example, using Rule 1
2 + 4 * 3 – 6
becomes
2 + 12 – 6
which results in
8
If we did not use Rule 1 then 2 + 4 * 3 – 6 would become 6 * 3 – 6 and then
18 – 6 and finally 12. This is an incorrect result.

If we do not use Rule 2 then the following illustrates how it can go wrong
4 *<b></b> 5 % 2
Going from left to right we evaluate the * first, which reduces the expression to 20 % 2
which becomes 0. If we evaluated the % first then the expression would reduce to 4 * 1
which becomes 1. This is an incorrect result. Remember, we are using integer mathematics
when doing our calculations, so we get integer results when doing division. For example
calc 20 / 3
6
Also note that we can use the unary + and – operators. For example
calc -5 / +2
-2
Your program must also check to make sure the command line arguments are correct. If not
your program must generate an appropriate error message and then terminate.


This is the specification of my requirement.Could any one please help me out in giving out a correct coding for this.



Thanking you

Roger.