CMIS102 Homework Assignment 1 (Worth 13% of your grade) Problem definition: Calculate the usable area in square feet of house. Assume that the house has a maximum of four rooms, and that each room is rectangular. A. Problem Analysis – Following the directions in the assignment, clearly write up your problem analysis in this section. This program will compute the area of a house that has four rectangular rooms. Output is the value of the total area (total_area) of the house and is to be calculated by area/length/width input (A1, A2, A3, A4, L1, L2, L3, L4, W1, W2, W3, and W4) variables declared as float variables.
The program will utilize the standard mathematical formula of obtaining area of a rectangle: A = L*W. As well, the formula will be coded in the program as Area=length*width (A=L*W) respectively for each room. L1 = length of first room, as float W1 = width of first room, as float A1=L1*W1 L2 = length of first room, as float W2 = width of first room, as float A2=L2*W2 L3 = length of first room, as float W3 = width of first room, as float A3=L3*W3 L4 = length of first room, as float W4 = width of first room, as float A4=L4*W4 B.
Program Design – Following the directions in the assignment, clearly write up your problem design in this section and comment your pseudocode. Raptor software will be used in designing and testing this program. The three fundamental tasks of creating a program will be incorporated: 1) Input Data: Use of Raptor to add Input and Assignment symbols will allow user to input data when running the program. The Main and Input_Data modules will heavily use the Input and Assignment symbols in Raptor. In the Input_Data_module, variables will be assigned and declared.
As well, the Main module will execute the entire program by calling the completed sub-charts. 2) Calculate formula: Use formulas to attain total_area of the house by calculating area of each of the four rooms. total_area = A1 + A2 + A3 + A4 to get the sums of all areas we must calculate the formula for each room A1 = L1*W1 A2 = L2*W2 A3 = L3*W3 A4 = L4*W4 3) Obtain Output: The program will display the result of total_area from process and calculation in the previous two steps. The design of the modular program will be created in Raptor and the design will look like this: Main module:
Comment: “This program computes the total area of a four bedroom house in square footage. Call Input_Data_module Call Calculations_module Call Output_Data_module End Input_Data_Module: Write “Length of first room” (L1) Write “Width of first room” (W1) Write “Length of second room” (L2) Write “Width of second room” (W2) Write “Length of third room” (L3) Write “Width of third room” (W3) Write “Length of fourth room” (L4) Write “Width of fourth room” (W4) Call Calculations_module End Perform Calculations module: Declare A1, A2, A3, and A4; as float
Set A1 = L1*W1 Set A2 = L2*W2 Set A3 = L3*W3 Set A4 = L4*W4 Set total_area = (A1+A2+A3+A4) End Output Data module: Write “The total area of house is:” + total_area End C. Program Comments and Test Data – Following the directions in the assignment, include your test data and expected results in this section. Table 1. Include your test data table here TEST RUN OF DATA INPUT INTO PROGRAM Room#:| Input: Length & Width (in feet)| | Expected Output: Footage of house (in feet)| | Test Run 1| Area of Rectangle :| A=L*W| Room 1| L=10, W=5| | 50=10*5|
Room 2| L=10, W=5| | 50=10*5| Room 3| L=10, W=5| | 50=10*5| Room 4| L=10, W=5| | 50=10*5| | Total Area=A1+A2+A3+A4:| 200 sq ft. | | Test Run 2| Area of Rectangle :| A=L*W| Room 1| L=12, W=6| | 72=12*6| Room 2| L=12, W=6| | 72=12*6| Room 3| L=12, W=6| | 72=12*6| Room 4| L=12, W=6| | 72=12*6| | Total Area=A1+A2+A3+A4:| 288 sq ft. | | Test Run 3| Area of Rectangle :| A=L*W| Room 1| L=20, W=10| | 200=20*10| Room 2| L=20, W=10| 200=20*10| Room 3| L=20, W=10| 200=20*10| Room 4| L=20, W=10| | 200=20*10| | Total Area=A1+A2+A3+A4:| 800 sq ft. |