Control flow refers to the order in which expressions and statements (and entire blocks of code) will run. Programming is, in part, the art of controlling flow. By writing code, we are specifying where control resides at any single moment.
At a granular level, the order of execution is dictated by the individual operators we use in our expressions. We explored the precedence and associativity of operators in the last chapter, discovering that, even if you have a series of operators, one after another, the exact order of their execution is defined by the individual operators' precedence and associativities so that, in the expression, 1 + 2 * 3, the 2 * 3 operation will occur before the addition.
Outside expressions, on the statement level, we control flow in the following ways:
- We can do so by ordering our statements in the order we wish them to occur...
