Most
programming languages distinguish
between two kinds of numbers: integers and
floating-point numbers. An integer is a whole
number that has no fractional component. Integers can be positive or
negative and include the number 0. Floating-point numbers (
floats for short) can include a fractional value
represented after a decimal point, as in 0.56, 199.99, and 3.14159.
So 1, 34523, -3, 0, and -9999999 are integers, but 223.45, -0.56, and
1/4 are floats.
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