Question

PYTHON

Exercise: Accelerate Method
-------------------------

### Description

In this exercise, you will add to your `Car` class
a method to accelerate the speed of an instance.

### Class Name

`Car`

### Method

`accelerate()`

### Parameters

* `self` : the `Car` object to use
* `delta_speed` : a number, the desired value to add to the speed data member.

### Action

Adds `delta_speed` to the speed of the object. If the
new speed is too fast, then set the speed to the
maximum allowed speed.

Only do this action of `delta_speed` is positive, and
the `Car` isn't already at maximum speed.

### Return Value

`True` if a change occurred, `False` otherwise.

class Car:
def __init__(self):
self.speed = 0.0

def getSpeed(self):
return self.speed
  
def setSpeed(self, speed):
if speed >= 0 and speed <= 80:
self.speed=speed
return True
else:
return False
  
def accelerate(self, delta_speed):

Answer 1

class Car:
    def __init__(self):
        self.speed = 0.0
    
    def getSpeed(self):
        return self.speed
      
    def setSpeed(self, speed):
        if speed >= 0 and speed <= 80:
            self.speed=speed
            return True
        else:
            return False
          
    def accelerate(self, delta_speed):
        if delta_speed > 0:
            if self.speed >= 80:
                self.speed = 80
                return False
            elif self.speed < 80:
                self.speed = self.speed + delta_speed
                if self.speed > 80:
                    self.speed = 80
                return True
        else:
            return False

I have put if-else condition to check if delta_speed is positive or not and if its already in max speed then no change. If after adding delta_speed, the speed is greater than max speed, i.e., 80, then speed is set to the
max allowed speed. Since, change in speed occurs, so it will return True otherwise False.

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