CMIS102 Homework Assignment 1

Student Name: Abel Patrick Assizo
Class/Section: CMIS 102 Section 7986
Professor Name: Jose Romero
Assignment due date: April 1, 2012

Assignment: 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. 1) Problem analysis
This Program is intended to compute the area of a house composed of four rectangular rooms. Indeed, for this problem, we need to output the value of the total area of the house after finding and summing the areas of each room. For this to be possible, we will define output and input variables.
Therefore, for this program, we will need to output the value of the following variable: * The value of the area of the house total_area (a Float variable)
We will also need to input the value of the length and width of each room, subsequently the following variables: * The value of the length of the first room length1 (a Float variable) * The value of the width of the first room width1 (a Float variable) * The value of the length of the second room length2 (a Float variable) * The value of the width of the second room width2 (a Float variable) * The value of the length of the third room length3 (a Float variable) * The value of the width of the third room width3 (a Float variable) * The value of the length of the fourth room length4 (a Float variable) * The value of the width of the fourth room width4 (a Float variable)

We will also need to define the value of others variable necessary to obtain the value of our output. The values of these variables are obtained based on the formula of the area of a rectangle: Area = length * width
For example, if a room is 10 feet long and 5 feet wide, its area is: Area = 10 * 5 = 50 square feet
If we have a house with four identical rooms, the area of the house will be: Area of the house = area room1 + area room2 + area room3 + area room4 = 50+50+50+50 = 200 square feet
Therefore, the variables which will be used and their formulas are: * The value of the area of the first room area1 (a Float variable) area1 = lenght1 * width1 * The value of the area of the second room area2 (a Float variable) area2 = lenght2 * width2 * The value of the area of the third room area3 (a Float variable) area3 = lenght3 * width3 * The value of the area of the fourth room area4 (a Float variable) area4 = lenght4 * width4
The formula of the area of the house will be then: total_area = area1 + area2 + area3 + area4 2) Program design

In order to implement our program, we need to perform three main fundamental tasks: a- Input data:
Input the variable lenght1, widht1, lenght2, widht2, lenght3, widht3, lenght4 and widht4 b- Perform calculations:
Compute the area of the house and the area of each room using the following formulas: total_area = area1 + area2 + area3 + area4 where area1 = lenght1 * width1 and area2 = lenght2 * width2 and area3 = lenght3 * width3 and area4 = lenght4 * width4 c- Output result:
Display the total area of the house (total_area)

The overall design of the program will be modular and will look like: Main module Declare total_area As Float Declare lenght1, lenght2, lenght3, lenght4 As Float Declare width1, width2, width3, width4 As Float Write “This program will compute the area of a four room house.” Call Input Data module Call Perform Calculations module Call Output Result module End Program Input Data module Write “Length of the first room: ” Input lenght1 Write “Width of the first room: ” Input width1 Write “Length of the second room: ” Input lenght2 Write “Width of the second room: ” Input width2 Write “Length of the third room: ” Input lenght3 Write “Width of the third room: ” Input width3 Write “Length of the fourth room: ” Input lenght4 Write “Width of the fourth room: ” Input width4 Perform Calculations module Declare area1, area2, area3, area4 As Float Set area1 = lenght1 * width1 Set area2 = lenght2 * width2 Set area3 = lenght3 * width3 Set area4 = lenght4 * width4 Set total_area = area1 + area2 + area3 + area4 Output Result module Write “The area of the house is: ” + total_area 3) Test Data

Input: Room length and width (in feet) | Expected output: Total square footage of house (in square feet) | Room1: length=10, width=14;Room 2: length=9, width=10;Room 3: length=12, width=2;Room 4: length= 5, width= 6 | 284 | Room1: length=1, width=14;Room 2: length=17, width=10;Room 3: length=12, width=14;Room 4: length= 43, width= 9 | 739 | Room1: length=4, width=8;Room 2: length=9, width=10;Room 3: length=18, width=12; | 338(This home does not have a fourth room, so length and width of this equal 0 ) |