Question: / * * * A queue ( first - in , first - out ) which stores printing requests for a printer. * Note that

/*** A queue (first-in, first-out) which stores printing requests for a printer. * Note that there is only ever 1 instance of the queue. Therefore it implements * the singleton design pattern. ** Just like the other tasks, you may edit this class as * much as you like (create helper methods if you want!) So long as you * genuinely pass the tests.

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