Читать книгу OCP Oracle Certified Professional Java SE 17 Developer Study Guide - Jeanne Boyarsky - Страница 110

Variables passed to a constructor or method are called constructor parameters or method parameters, respectively. These parameters are like local variables that have been pre-initialized. The rules for initializing constructor and method parameters are the same, so we focus primarily on method parameters.

In the previous example, check is a method parameter.

public void findAnswer(boolean check) {}

Take a look at the following method checkAnswer() in the same class:

public void checkAnswer() { boolean value; findAnswer(value); // DOES NOT COMPILE }

The call to findAnswer() does not compile because it tries to use a variable that is not initialized. While the caller of a method checkAnswer() needs to be concerned about the variable being initialized, once inside the method findAnswer(), we can assume the local variable has been initialized to some value.