Float is a term is used in various programming languages to define a variable with a fractional value. Numbers created using a float variable declaration will have digits on both sides of a decimal point. This is in contrast to the integer data type, which houses an integer or whole number.
Programmers will commonly use the term float before the name of a variable. A second line of code can declare a value for the float variable by using the name of the variable, adding the equals sign, and following that with the value. Float variables can change value within a program unless they are declared as constants or static variables.
The float variable is often used to include currency values in a computer program. Programmers can designate the number of placeholders after the decimal by using additional commands on a float variable. In general, floats use the same operators as integers in the same ways. The addition, subtraction, multiplication and division of these variables is fairly straightforward in most cases.