1. Variables, Loops, Decision Statements, etc
C# Basics
Variables, Loops, Decision Statements, etc

2. Variables Declarations
byte - 0 to 255
char - 2 bytes
bool
sbyte to 127
short - 2 byte int
ushort - 0 to 65,535
int - 4 bytes
uint - 4 bytes positive
float
double
decimal
long
ulong
string

3. Using Variables C# is Strongly Typed
float x = 10.9f;
double y = 15.3;
y = x; // okay
x = (float) y; // conversion required
Variables must have Value before being used.
Hence declarations usually include initialization

4. Simple Arrays int[] myArray1 = new int[5];
for (int i=0;i<10; i++)
Console.Write ("{0} ",myarray[i]);
Console.WriteLine();

5. Looping Statements Same as C++ Different from C++ while (count > 0)
process_list (count--); do
process_list( ++count );
while (count < 10);
for (int i=1; i<=10; i++)
Different from C++
while (count)// illegal C# unless count is bool

6. Decision Statements Almost Just Like C++ if (count >= 10) {
dostuff();
domorestuff(); }
else
...
switch (choice) {
case 'Y': //must be empty
case 'y': do_yes_stuff();
break;
default:
...

7. Simple Console Output System.Console.WriteLine System.Console.Write
System.Consolue.WriteLine ("count = {0} and sum = {1}",
count, sum);

8. Simple Console Input string inputline; char charvalue; int intvalue;
Console.Write ("Enter a string: ");
inputline = Console.ReadLine();
Console.WriteLine("You just entered \"{0}\"",inputline);
Console.Write ("Enter a character: ");
charvalue = (char) Console.Read();
Console.WriteLine("You just entered \"{0}\"", charvalue);
Console.ReadLine();
Console.Write ("Enter an integer: ");
intvalue = Convert.ToInt32(inputline);
Console.WriteLine("You just entered \"{0}\"", intvalue);