Why no return value on the method load?

Load is performing an action so there doesn't really need to be anything returned. You are loading pez candy in the Pez dispenser. A return would be something like getting the Pez characters name or the number of pez in the dispenser. Java is nice because you can tell by the method if something will be returned.

In our PezDispenser.java, the method is like this:

public void load() {
    mPezCount = MAX_PEZ;
}

Since we have the void we know that nothing will be returned. In our isEmpty we are seeking to get information from calling the method, we want the method to tell us if the Pez dispenser is empty or not. The method looks like this:

public boolean isEmpty() {
    return mPezCount == 0;
}

We can tell this will have a return value because (1) the method is no longer void, now it is boolean, meaning we will return a boolean value. (2) we also know it will return because it has the return keyword. The expression mPezCount == 0 is a comparison that will be either true or false and that is what will be returned. So just remember, the load method isn't looking to get information, it is just performing an action. Hope this helped!