Search:

For adding an Equipment object, create an addEquipment( Equipment equipment ) method that is called on the backpack instance:

backpack.addEquipment( crowbar );

The class Equipment name should...

Call the addCanteen() method on an instancde of Backpack:

Backpack backpack = new Backpack();
backpack.addCanteen(); // I didn't include the String parameter, because I don't know why you've...

Please post your code properly indented, like the first bit of code above. Having all lines left justified makes your code hard to read.

Adding a Canteen object to your backpack might be as...