The snippets of code that you have seen in this book so far are just that - snippets. They show a single line of code that does one thing such as set a variable or print out a string. That is the way that programming began: one line of code after another.
Before long, the shortcomings of this line-after-line style of writing code
became apparent as programming backlogs grew and programmers found themselves lost in line after line that they and others had written over years. In various ways and various places, developers created standards, styles, and other ...
