This class manages the state of the exercises. Example for arguments: ÜB 1, Aufgabe 2.3 a), 2 Punkte

• exc = 1
• task = 2
• subtask = 3a)
• points = 2

Example usage:

exc = Exercise( 1 )
task1 = Task( exc, task = 1, subtask = "2 a)", points = 2 )