Question

11p

Read the following code for oofraction. import oofraction class OOFraction: def main(): fl = oofraction.o0Fraction( 2, 5) f2 = oofraction.o0Fraction ( 1, 3) f3 = f1 + f2 print (str(3)) main() def __init__(self, Num, Den): self.mNum = Num self.mDen = Den return def_add_(self,other): num = self.mNumother.mDen + other.mNum*self.mDen den = self.mDen*other.mDen f = OOFraction(num,den) return f 1. Write the output below. def_str_(self): s = str( self.mNum )+"/" + str( self.mDen) returns 2. Write a class called wholeNum that inherits from OOFraction. You should use constructor chaining to set the data members. The constructor takes an integer as the numerator. The denominator will always be 1. Write a method that overloads the str_operator. It will concatenate a 'w' to the whole number. #wholeNum.py import oofraction from wholeNum import WholeNum 3. What will the following code output assuming you wrote the wholeNum class correctly. def main(): f1 = oofraction.OOFraction( 2,5) f4 = WholeNum(10) print("->" + str(f4)) print("->" + str(f4+f1)) return main()

Python Language

Answer 1

Question 1. The output will be 11/ 15

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Question 2.

from oofraction import OOFraction


class WholeNum(OOFraction):

    def __init__(self, num):
        super().__init__(num, 1)

    def __str__(self):
        return 'w' + super().__str__()

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Question 3. the output will be

->w10/1
->52/5

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Question 4.

def __iadd__(self, other):
    self.mNum = self.mNum * other.mDen + self.mDen * other.mNum
    self.mDen = self.mDen * other.mDen

    return self