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The common data types are:
Data Type Used for Declaration Example
Integer (int) It represents whole numbers (zero, a = 2 7, 12, 999
positive, 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 point It represents a real number with a=5.1 3.15, 9.06, 00.13
(float) decimal values or fraction. a=9.99*8.888
Another type of floating-point
number is "double" data type, to
store even bigger values.
Character It holds a single letter (e.g. a, b, c). a=’z’ 97 (in ASCII, 97 is
(char) The syntax of declaring a a lower case 'a')
character variable is specific to
the programing language.
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 a=“Hello” hello world, Alice,
characters and stores sequence Bob123
of characters.
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 (bool) It represents logical values. b=False TRUE, FALSE
It stores values in Boolean type
only i.e. “true (1)” or “false (0)”.
It is a subtype of integer data type.
10 Touchcode-VII

