Functions are reusable code blocks that will only execute when called.
A function can be created by typing void followed by the function’s name, a set of parentheses, and a code block. The void keyword means that the function will not return a value. The naming convention for functions is the same as for variables—a descriptive name with each word initially capitalized, except for the first one.
The previous function will simply print out a text message when it is called. To invoke it from the main function, ...