Functions Quick Guide

Component	Application	Example	Notes
prototype	allows programmer to call functions from anywhere in the program		a list of function prototypes goes above the main function each function prototype includes the return type of the function this should match the data type of any information that is sent out of the function the name of the function a list of parameters and their data type parameters are like special variables that save the values sent into the function a semicolon
call	where in the program the code in the function will run		function calls go in anywhere in our program that we want the function's behavior each function call includes a variable and assignment operator if the returned value of a function is being saved the function name a list of arguments and their data type arguments are the actual values sent into the function a semicolon
definition	where the code for the function goes		function definitions go below the main function the first line of a function definition is the same as the function prototype except that the semicolon is replaced with curly braces all of the functions code goes in between the curly braces anything can go here, even other function calls