c. Modify the program in Exercise 2b so that the main program also prompts the user for the interest rate and passes both the amount of money and the interest rate to the interest-calculating method.
To modify the program in Exercise 2b to prompt the user for the interest rate and pass both the amount of money and interest rate to the interest-calculating method, you can follow these steps:
Step 1: Start by defining the main program. This is where you will prompt the user for the amount of money and the interest rate.
Step 2: Inside the main program, use the input() function to prompt the user for the amount of money. Store the user's input in a variable, let's call it 'amount'.
Step 3: Next, use the input() function again to prompt the user for the interest rate. Store the user's input in a variable, let's call it 'interest_rate'.
Step 4: Convert both the 'amount' and 'interest_rate' variables to the appropriate data types. For example, you can use the float() function to convert them to floating-point numbers.
Step 5: Now, call the interest-calculating method from Exercise 2b and pass both the 'amount' and 'interest_rate' as arguments to the method. For example, if the method is named 'calculate_interest', you can call it like this: calculate_interest(amount, interest_rate).
The modified code may look something like this:
```python
def calculate_interest(amount, interest_rate):
interest = amount * (interest_rate / 100)
return interest
def main():
# Step 2
amount = float(input("Enter the amount of money: "))
# Step 3
interest_rate = float(input("Enter the interest rate: "))
# Step 5
interest = calculate_interest(amount, interest_rate)
print("The interest is:", interest)
# Call the main function to start the program
main()
```
With this modification, the program will now prompt the user for both the amount of money and the interest rate, and then pass both values to the `calculate_interest` method to calculate and display the interest.