IN THIS CHAPTER
Introducing static methods
Seeing some good reasons to use methods in your programs
Creating methods that return values
Creating methods that accept parameters
In Java, a method is a block of statements that has a name and can be executed by calling (also called invoking) it from some other place in your program. You may not realize it, but you’re already very experienced in using methods. To print text to the console, for example, you use the
nextInt method. To compare string values, you use the
equalsIgnore Case method. Finally, the granddaddy of all methods —
main — contains the statements that are executed when you run your program.
All the methods you’ve used so far (with the exception of
main) have been defined by the Java API and belong to a particular Java class. The
nextInt method belongs to the
Scanner class, for example, and the
equalsIgnoreCase method belongs to the
String class. By contrast, the
main method belongs to the class ...