Conditional Execution - Building Java Programs: A Back to Basics Approach - page 232

No

Is test1 true?

Ye s

statement1

No

Is test2 true?

Ye s

statement2

No

Is test3 true?

Ye s

statement3

Figure 4.3

Flow of sequential if s

one statement is your objective, this construct is more appropriate than the
sequential if statements. It reduces the likelihood of errors and simplifies the test-
ing process.
As you can see, nesting if statements like this leads to a lot of indentation. The
indentation isn't very helpful, because this construct is really intended to allow the
choice of one of a number of alternatives. K&R style has a solution for this as well. If
an else is followed by an if , we put them on the same line:

if (<test1>) {
<statement1>;
} else if (<test2>) {
<statement2>;
} else if (<test3>) {
<statement3>;

}