The Random class never needs to be imported Scope involves the areas where the names of methods/variables are valid. A static method in Java does not involve an object. Main is the only method that is called implicitly upon evoking a JVM Any method can be used in place of its return type n any expression. In a while statement, the body executes at least once. void methods return a Boolean to indicate success or failure. Until we learn about objects, all of our methods begin with public static. nextInt (index) of Random returns a number between 0 and index-1 x++ and ++x will produce different results if used in an expression