Still confused on Method Signatures.

Hi Jae,

The reason there are two methods is so we will have a default load() with no arguments - which when called, will assume a full load is required (no Pez currently in dispenser), because of how it's been written. And then, to create a specific load() which won't be used unless an argument to load only that many Pez is provided. So if you called the load() on a Pez dispenser object with any Pez currently in it, you'll throw an exception - you'd need to know how many were in the Pez dispenser object, and add an appropriate amount. But if you had 2 Pez in a Pez dispenser object, you could add up to 10 more with a call to load(10). You could make more load() functions with different arguments - for example, a load(String pezFlavor, int pezAmount) if you wanted to add an option to load flavored Pez - and still keep these functions for default flavored Pez, or loading a full count of default flavored Pez.

//  Reference the second function with the MAX_PEZ constant as the argument, 12.
public void load() { load(MAX_PEZ); } 

public void load(int pezAmount) {
   //  The new amount will be the member variable of the current Pez count
   //   plus the number of Pez being passed as an argument.
    int newAmount = mPezCount + pezAmount;
   //  Check if the number of Pez being added by the argument will be over the MAX_PEZ amount.
    if(newAmount > MAX_PEZ) {
        throw new IllegalArgumentException("Too many PEZ!!!"); 
    //  If an exception isn't thrown by having too many Pez, then make the member variable
    //  equal to the new amount of the old Pez count plus the ones added by this function.
    } mPezCount = newAmount;
} 

Please let me know if you have any other questions about method signatures!