Introduction to Java Programming - Building Java Programs: A Back to Basics Approach - page 37

11
12 public static void bar() {
13 baz();
14 System.out.println("bar");
15 }
16
17 public static void baz() {
18 System.out.println("baz");
19 }
20 }
You can't tell easily what output this program produces, so let's explore in detail
what the program is doing. Remember that Java always begins with the method
called main . In this program, the main method calls the foo method and the bar
method and then executes a println statement:
public static void main(String[] args) {
foo();
bar();
System.out.println("mumble");
}
Each of these two method calls will expand into more statements. Let's first
expand the calls on the foo and bar methods:
public static void main(String[] args) {
foo();
public static void foo() {
System.out.println("foo");
}
bar();
public static void bar() {
baz();
System.out.println("bar");
}
System.out.println("mumble");
}
This helps to make our picture of the flow of control more complete, but notice
that bar calls the baz method, so we have to expand that as well.