Of Wands and Java

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There is also the possibility of an unvoiced object that is derived by pointing the wand at something physically. In The Goblet of Fire, Hermione simply points her wand at a broken window and says "reparo". Internally, the wand is sending the reparo() message to the derived target of the wand pointer:

Pointer.getTarget().reparo();

Also in The Sorcerer's Stone, in Professor Flitwick's Charms class, Hermione demonstrates the proper way to do the levitation charm, "wingardium leviosa":

wingardium.leviosa();

"Wingardium" is the feather object, and sending the leviosa() message to it causes the object to be levitated.