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The common data types are:


              Data Type                        Used for                         Declaration        Example

             Integer          It represents whole numbers (zero, positive,     int a=2;         7, 12, 999
             (int)           negative value, not the decimal value)/integer
                             value.

                              Assigning non-integer values to integer
                             variable returns an error.
                             Variable holds only a single value.

             Floating         It represents a real number with decimal         Float a=5.1;     3.15, 9.06,
             point           values or fraction.                               Double           00.13
             (float)          Another type of floating-point number is         a=9.99*8.888

                             "double" data type, to store even bigger values.

             Character       It” holds a single letter (e.g. a, b, c).         Char a=’z’;      97 (in ASCII,
             (char)           The syntax of declaring a character variable                      97 is a lower
                             is specific to the programing language.                            case 'a')
                             It is the smallest data type by size.

                              Assigning a non-character type value to
                             character type  variable returns error.

             String (str)     It represents alphanumeric characters and        String           hello world,
                             stores sequence of characters.                    a=“Hello”        Alice, Bob123
                              It is used for the combination of any
                             character which appears on the keyboard
                             (letters, numbers, symbols).
                              In python string variables can be declared
                             either by single quotes or double quotes or
                             triple quotes.

             Boolean         It represents logical values.                     Bool b=false;    TRUE, FALSE
             (bool)           It stores values in Boolean type only i.e. “true
                             (1)” or “false (0)”.
                             It is a subtype of integer data type.








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                     were Ph.D. students at Stanford University in California.





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