1. Integer Data Type
byte centuries = 20; // Usually a small number
ushort years = 2000;
uint days = 730480;
ulong hours = 17531520; // May be a very big number
Console.WriteLine("{0} centuries is {1} years, or {2} days, or {3} hours.", centuries, years, days, hours);
2. Precision Example
float floatPI = 3.141592653589793238f;
double doublePI = 3.141592653589793238;
Console.WriteLine("Float PI is: {0}", floatPI);
Console.WriteLine("Double PI is: {0}", doublePI);
3. Abnormalities in the Floating-Point Calculations
float a = 1.0f;
float b = 0.33f;
float sum = 1.33f;
bool equal = (a+b == sum); // False!!!
Console.WriteLine("a+b={0} sum={1} equal={2}", a+b, sum, equal);
4. Boolean Dataype
int a = 1;
int b = 2;
bool greaterAB = (a > b);
Console.WriteLine(greaterAB); // False
bool equalA1 = (a == 1);
Console.WriteLine(equalA1); // True
5. Char data type
char symbol = 'a';
Console.WriteLine("The code of '{0}' is: {1}",
symbol, (int) symbol);
symbol = 'b';
Console.WriteLine("The code of '{0}' is: {1}",
