C# DATA TYPES

 C# DATA TYPES : 

         As explained in the variables chapter , "A variables in C# must be a specified data type " .

EXAMPLE : 

     int myNum = 5; // Integer (whole number)

double myDoubleNum = 5.99D;  // Floating point number
char myLetter = 'D';         // Character
bool myBool = true;          // Boolean
string myText = "Hello";     // String

TRY IT YOURSELF :    

ADVANTAGES OF DATA TYPE :       

               A  Data type specifies the size and type of variable value . It is important to use the correct data type for the Corresponding Variable ; to avoid errors , to save time and memory .

   The most common types are :

   NUMBERS : 

                       Numbers types are divided into two groups :

                      *  INTEGER TYPE

                      *   FLOTING POINT TYPE 

INTEGER TYPE : 

                    Stores whole number , positive or negative (such as 123 or - 123),without decimals valid types are int and long . which type you should use ,depends on the numeric value .

FLOATING TYPE : 

                    Represents numbers with a fractional parts containing one or more decimals valid types are float and double.

  NOTE : 

    Even though there are many numeric types in C# the most used for numbers are int (for whole numbers ) and double (for floating point numbers ).

INTEGER TYPE  :

             * INT : -

                     The int data type can store whole number from -21345678 to 21345678 . The int data type is the preferred data type when we create variables with a numeric value .

TRY IT YOURSELF :

          

         *LONG ;-

      The long data type can store whole numbers from -1234567890876 to 123456789976.This is used when int is not large enough to store the value . Note that you should end the value with an "L".

TRY IT YOURSELF : 

        

 FLOATING POINT TYPES : 

         You should use a floating point type whenever you need a number with a decimal ,such as 9.99 or 3.13453

    * FLOAT ;-

           The float data type can store fractional numbers from 3.4 e - 038 to 3.4 e +038 .Note that you should end the value with an "F".

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          DOUBLE : -

                      The double data type can store fractional numbers from 1.7e - 308 to 1.7e + 308 . Note that you should end the value with an "D".

 TRY IT YOURSELF :

BOOLEANS :

      

             Boolean data type is declared with the bool .keyword and can only take the values true or false.

           TRY IT YOURSELF :

           

         

CHARACTERS : 

          The char data type is used to store a single character .The character must be surrounded by single quotes. 

   TRY IT YOURSELF :

         

STRING : 

         The string data type is used to store a sequence of characters (text) .String values must be by double quotes .

TRY IT YOURSELF :

     

  

     I hope this is use for beginners and students .

        

                                       ******** THANK YOU ********