國立暨南國際大學 103 學年度第一學期小考試卷

1. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   class Student:
       def __init__(n, w, h):      # Constructor
           name = n
           weight = w
           height = h
   
   def main():
       a = Student("Alice", 65, 1.65)
       b = Student("Bob", 75, 1.75)
       print(a.weight, b.height)
   
   main()
   
   
   
2. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   class Point:
       def __init__(self, x, y):
           self.x = x
           self.y = y
       def move(self, dx, dy):     # method
           self.x = self.x + dx    # instance variable
           self.y = self.y + dy
   
   a = Point(3, 5)
   a.move(4,6)
   print(a.x, a.y)
   
   
   
   
3. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   class Point:
       def __init__(self, x, y):
           self.x, self.y = x, y
       def move(self, dx, dy):
           x = dx
           y = dy
   
   def main():
       a = Point(4,6)
       a.move(3, 5)
       print(a.x, a.y)
   
   main()