Sams Teach Yourself C in 21 Days

Object-Oriented Programming Languages 645

BD1

The C# Programming Language ........................................................................

Released to the public in June 2000, C#—pronounced See Sharp—has not been around

for very long. C# is a new language created by Microsoft and submitted for standardiza-

tion to ECMA.

C# was created to remove a lot of the problems that other programming languages had. It

was intended to be a language that could be used going into the future. You’ll see that C#

looks a lot like C, C++, and Java. Listing B1.4 presents a simple C# program. On the

seventh bonus day you will be introduced to C#.

LISTINGB1.4 sample.cs. A simple C# program

1: // app.cs - A sample C# application

2: //-----------------------------------------------

3:

4: using System;

5:

6: class sample

7: {

8: public static void Main()

9: {

10: //Declare variables

11:

12: int radius = 4;

13: const double PI = 3.14159;

14: double area;

15:

16: //Do calculation

17:

18: area = PI * radius * radius;

19:

20: //Print the results

21:

22: Console.WriteLine(“Radius = {0}, PI = {1}”, radius, PI );

23: Console.WriteLine(“The area is {0}”, area);

24: }

25: }

DOconsider learning C++ or Java if you

need to write large, complex programs.

DON’Tabandon C, because it is very use-

ful for many types of small-to-medium

sized programming projects.

DO DON’T

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