Question

- Part 2 – 4 Desk Checking Exercises – these are 3 programs (pseudocode) that are working and 1 program (Python). Explainthe intent of the pseudocode / program. If you use test data, note the test data.  .  You are NOT trying to find mistakes.

What does this do? Desk Checking #1:  Explain the intent of this pseudocode. List the data you use as the example data.

start

                  Declarations

         num balance

Use this textbox to explain the pseudocode/ code intent. Include any test data used:

         num month

         num loanAmt

         num paymentAmt

         string PROMPT = “Enter the loan amount and payment amount >> ”

housekeeping()

detail()

finishUp()

stop

housekeeping()

         output PROMPT

         input loanAmt, paymentAmt

return

detail()

                  month = 1

                  balance = loanAmt

                  while balance > 0

                           balance = balance – paymentAmt

                           output month, balance

                           month = month + 1

                  endwhile

return

finishUp()

         output “End of program”

return

Answer 1

I have devised a line-by-line approach to try and explain the code better.

1. our program starts

2. we declare a variable balance which will store a number.

3. we declare a variable month which will store a number.

4.we declare a variable loanAmt which will store a number.

5.we declare a variable paymentAmt which will store a number.

6.we declare a variable PROMPT which will store a string. The string is specifeid to us in our program.

This ends the decleration.

After this we have 3 seperate programs each having a specific task

7. call housekeeping()

the work of housekeeping function is to take 2 values as input, the loanAmt and what the user is going to pay every month or the paymentAmt.

So here we do that. we print the PROMPT to ask the user to input 2 variables.

We then take these 2 variables as input.

Next is detail(): The work of detail is to calculate the number of months required to complete the payment of loan.

So we store the loanAmt in balance, we do this so that the loanAmt is not lost. Suppose we dont perform this step, what would happen is at the end of this function our loanAmt will be less than 0 and now we dont know what our real loanAmt was. So as to not lose that value we use a temporary variable balance.

so while balance>0

we keep deducting the paymentAmt, print the number of months that have passed and the balance amount left .

We increase the number of months after every loop.

Finally, we call the finishup() function:

This function just prints out End of program.

Test data: Dry run

Enter the loan amount and payment amount >> 10000 2000

month=1, balance=10000

balance>0? Yes

balance=8000

Prints: 1 8000

now month=2

Again balance>0 yes

balance=6000

2, 6000

month=3

Again balance>0 yes

balance=4000

3, 4000

month=4

Again balance>0 yes

balance=2000

4, 2000

month=5

Again balance>0 yes

balance=0

5, 0

month=6

Again balance>0? No

so we exit

End of program

If you have any doubts or require any clarifications, let me know in the comment section and i will help you out. If you want me to code this, let me know in the comments. Thank you :)