What device, traditionally used by telephone technicians, enables you to tap into a phone line to, for example, check a line for dial tone?

If you are using Java 1.5 or above modify Program to use a for-each loop.

Fill in the blank(s) with the appropriate word(s).

Games often have nonplayer characters (NPC) which are characters that are not controlled by the player. Add an Evil Wizard to the castle game. When you first play the game, the Evil Wizard is in the Courtyard, and his description says that he is in the Courtyard, but then disappears. Every other time after the first time you enter the Courtyard, the Evil Wizard does not appear in the description. But if you visit the Wizard’s Room, the Evil Wizard can be found there. You defeat him and win the game.

Note: This question requires the addition of a variable to track the appearance of the evil wizard in the courtyard, a change to the showCourtyard function to switch whether or not he appears, and a change in pickRoom or showWR to lead to a win state.