What is diffrence between data type and variable

Answer 1

data type are used the define the type of data u r using
and
variable are used to store that particular type of data in it

Answer 2

data types are of two types
1 primitive datatype
2 non-primitive datatype

variable is declared as "var" keyword and it is used to store a data, which can either be numerical value and can also in a form of a string