Java How To Program, Late Objects, 11th Edition

5.5 Notes on Declaring and Using Methods

Calling Methods

There are three ways to call a method:

1. Using a method name by itself to call another method of the same class—such as maximum(number1, number2, number3) in line 18 of Fig. 5.3.

2. Using a variable’s name, followed by a dot (.) and the method name to call a non-static method of an object—such as the method call in line 13 of Fig. 5.3, input.nextDouble(), which calls a Scanner method from MaximumFinder’s main method. Non-static methods are typically called instance methods.

3. Using the class name and a dot (.) to call a static method of a class—such as Math.sqrt(900.0) in Section 5.3.

Returning from Methods

There are three ways to return control to the statement that calls a method: