Chapter Two. Functions and Modules
This chapter centers on a construct that has as profound an impact on control flow as do conditionals and loops: the function, which allows us to transfer control back and forth between different pieces of code. Functions (which are known as static methods in Java) are important because they allow us to clearly separate tasks within a program and because they provide a general mechanism that enables us to reuse code.
We group functions together in modules, which we can compile independently. We use modules to break a computational task into subtasks of a reasonable size. You will learn in this chapter how to build modules ...
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