Chapter 4. Numbers
Numbers are the fundamental language of computers. They are also a staple of software development. Numbers are used to keep track of temperature, count the letters in a sentence, and track the number of zombies infesting a town. Numbers come in two basic flavors: integers and floating-point numbers.
Integers
You have worked with integers already, but we have not yet defined them. An integer is a number that does not have a decimal point or fractional component – a whole number. Integers are frequently used to represent a count of “things,” such as the number of pages in a book.
A difference between integers used by computers and numbers you use elsewhere is that an integer type on a computer takes up a fixed amount of memory. ...
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