Description: This program will calculate the usable area in square feet of a four bedroom house.
Analysis: In building this program, I need it to efficiently calculate the total usable area of an entire four bedroom house. In order to do this, the program first needs to calculate the dimensions of each room. Once it has found the total area for each room, the program can then add the four room dimensions to arrive at the total usable area for the entire house. The calculations should look like this:
Total usable area = (l*w) + (l*w) + (l*w) + (l*w) Rm. 1 Rm. 2 Rm. 3 Rm. 4
When I first started planning this program, I gave the room variables the names living_room, kitchen, bedroom1, and bedroom2. However, it became confusing trying to match these variables with the names of the dimension variables. Instead, I gave each room a number and the dimension variables have a corresponding number (for example, room1, length1, width1 and room2, length2, width2).
Variables:
* room1: total usable area of room number one * length1: length of room number one * width1: width of room number one * room2: total usable area of room number two * length2: length of room number two * width2: width of room number two * room3: total usable area of room number three * length3: length of room number three * width3: width of room number three * room4: total usable area of room number four * length4: length of room number four * width4: width of room number four * total_house: total usable area of the four bedroom house
Test Plan Test Case Number | Input | Output | Pass/Fail | #1 | room1: length=18’ width=11’;room2: length=15’ width=17’;room3: length=13’ width=11’;room4: length=21’ width=14’ | 890 sq. ft. | Pass | #2 | room1: length=15’ width=13’;room2: length= 8’ width=10’;room3: length=14’ width=14’;room4: length=10’ width=12’ | 591 sq. ft. | Pass | #3 | room1: length=20’ width=17’;room2: length=10’ width= 9’;room3: length= 8’ width=12’;room4: length=13’ width=15’ | 721 sq. ft. | Pass | #4 | room1: length=25’ width=15’;room2: length=13’ width=17’;room3: length=17’ width=19’;room4: length=18’ width=20’ | 1,279 sq. ft. | Pass | #5 | room1: length a=35’ length b=20’ width=15’;room2: length a=25’ length b=40’ width=15’;room3: length a=27’ length b=37’ width=25’;room4: length a=33’ length b=23’ width=25’ | 2400 sq. ft. | Fail – As it is currently written, this program cannot handle rooms that have irregular dimensions, such as parallel walls with different lengths or widths. |

Pseudocode
Input length1
Input width1
Input length2
Input width2
Input length3
Input width3
Input length4
Input width4

//type in expressions to calculate rooms 1-4 total usable area
Set room1 = (length1*width1)
Set room2 = (length2*width2)
Set room3 = (length3*width3)
Set room4 = (length4*width4)
//type in expression to calculate total usable area of entire house
Set total_house = room1 + room2 + room3 + room4

Output total_house
Execute

Test Case #1
Input length1 – 18
Input width1 – 11
Input length2 – 15
Input width2 – 17
Input length3 – 13
Input width3 – 11
Input length4 – 21
Input width4 – 14

//type in expressions to calculate rooms 1-4 total usable area * Set room1 = (18*11) * Set room2 = (15*17) * Set room3 = (13*11) * Set room4 = (21*14)
//type in expression to calculate total usable area of entire house * Set total_house = 198 + 255 + 143 + 294

Output 890 square feet

Test Case #2
Input length1 – 15
Input width1 – 13
Input length2 – 8
Input width2 – 10
Input length3 – 14
Input width3 – 14
Input length4 – 10
Input width4 – 12

//type in expressions to calculate rooms 1-4 total usable area * Set room1 = (15*13) * Set room2 = (8*10) * Set room3 = (14*14) * Set room4 = (10*12)
//type in expression to calculate total usable area of entire house * Set total_house = 195 + 80 + 196 + 120

Output 591 square feet

Test Case #3
Input length1 – 20
Input width1 – 17
Input length2 – 10
Input width2 – 9
Input length3 – 8
Input width3 – 12
Input length4 – 13
Input width4 – 15

//type in expressions to calculate rooms 1-4 total usable area * Set room1 = (20*17) * Set room2 = (10*9) * Set room3 = (8*12) * Set room4 = (13*15)
//type in expression to calculate total usable area of entire house * Set total_house = 340 + 90 + 96 + 195

Output 721 square feet

Test Case #4
Input length1 – 25
Input width1 – 15
Input length2 – 13
Input width2 – 17
Input length3 – 17
Input width3 – 19
Input length4 – 18
Input width4 – 20

//type in expressions to calculate rooms 1-4 total usable area * Set room1 = (25*15) * Set room2 = (13*17) * Set room3 = (17*19) * Set room4 = (18*20)
//type in expression to calculate total usable area of entire house * Set total_house = 375 + 221 + 323 + 360

Output 1,279 square feet

Test Case #5
Input length1a – 35
Input length1b – 20
Input width1 – 15
Input length2a – 25
Input length2b – 40
Input width2 – 15
Input length3a – 27
Input length3b – 37
Input width3 – 25
Input length4a – 33
Input length4b – 23
Input width4 – 25

//type in expressions to calculate rooms 1-4 total usable area * There is no way of entering in this data correctly
Set room1 = (length1*width1) * Set room2 = (length2*width2) * Set room3 = (length3*width3) * Set room4 = (length4*width4)
//type in expression to calculate total usable area of entire house * Set total_house = room1 + room2 + room3 + room 4

Output ???? square feet