Java 9 Programming By Example

Methods

We have already discussed methods, but not in detail, and there are still some aspects that we should meet before we go on.

There are two methods in the sample classes. There can be many methods in a class. Method names are also camel cased by convention, and the name starts with a lowercase letter, as opposed to classes. Methods may return a value. If a method returns a value, the method has to declare the type of the value it returns and, in that case, any execution of the code has to finish with a return statement. The return statement has an expression after the keyword, which is evaluated when the method is executed and is returned by the method. It is good practice to have only one single return from a method but, in some simple ...