6.5 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. 6.3.

  2. Using a variable that contains a reference to an object, followed by a dot (.) and the method name to call a non-static method of the referenced object—such as the method call in line 14 of Fig. 3.2, myAccount.getName(), which calls a method of class Account from the main method of AccountTest. 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 6.3.

Returning from Methods

There are three ways ...

Get Java How to Program, Early Objects, 11th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.