Question

Writ a program using java. Depending on the size of the room and the amount of shade that the room has, different sizes of air conditioning units must be used in order to be able to properly cool the room. The unit of measure for the amount of cooling that an air conditioner unit can provide is the BTU (British Thermal Unit) per hour. Code a program that will calculate the correct size of air conditioner for a specific room size using the instructions below. Step 1: Ask the user to enter the length of their room (in feet). Step 2: Ask the user to enter the width of their room (in feet). Step 3: Calculate the area (in square feet) of the room by multiplying the length and the width of the room. For example, if a room is 20 feet wide by 24 feet long, then its area is 20 * 24 = 480 square feet Step 4: Display a menu that asks the user how much shade the room gets. The menu should have the following options: Little Shade Moderate Shade Abundant Shade Step 5

Determine the capacity of the air conditioning unit that is needed for a moderately shaded room by using the information in the table below.

Room Size (Square Feet)	Air Conditioner Capacity (in BTUs per Hour)
Under 250	5,500
From 250 to 500	10,000
Over 500 to Under 1000	17,500
1000 or Greater	24,000

If the room has little shade, then the BTU capacity should be increased by 15% since the air conditioning unit must be able to produce extra cooling.

If the room has abundant shade, then the BTU capacity should be decreased by 10% since the air conditioning unit does not need to work as hard to cool a shaded room.

Step 6:

Create a String object in memory to hold the text “Air Conditioning Window Unit Cooling Capacity”. Display that text at the top of the output.

Step 7:

Display the following output:

• The area of the room (in square feet)
• The amount of shade that the room gets
• The number of BTUs per Hour that are needed to cool that room (rounded to the nearest whole number

computer science

:

Answer 1

Code:

import java.util.Scanner;
class CalculateBHU
{
   public static void main(String args[])
   {
       // Scanner object is used to read input from the user
       Scanner input = new Scanner(System.in);
       // Prompting the user to enter length
       System.out.print("Enter the room length in feet:");
       // Reading the length
       int roomLength = input.nextInt();
       // Prompting the user to enter width
       System.out.print("Enter the room width in feet:");
       // Reading the width
       int roomWidth = input.nextInt();
       // Calculating the area of the room
       int roomArea = roomLength * roomWidth;
       // This variable is used to store the capacity of the air conditioner needed for the room
       double airConditionerCapacity = 0;  
       // If the area is less than 250  
       if(roomArea < 250)
       {
           airConditionerCapacity = 5500;
       }
       // If the area is greater than or equal to 250 and less than 500
       else if(roomArea>=250 && roomArea<500)
       {
           airConditionerCapacity = 10000;
       }
       // If the area is greater than or equal to 500 and less than 1000
       else if(roomArea>=500 && roomArea < 1000)
       {
           airConditionerCapacity = 17500;
       }
       // If the area is greater than or equal to 1000
       else if(roomArea >=1000)
       {
           airConditionerCapacity = 24000;      
       }
       // Prompting the user to enter the amount of shade the room gets
       System.out.println("Select the amount of shade the room gets");
       System.out.println("1.Little Shade");
       System.out.println("2.Moderate Shade");
       System.out.println("3.Abundant Shade");
       System.out.print("Enter your choice:");
       // Reading the shade choice from the user
       int roomShadeChoice = input.nextInt();
       // If the shade the room gets is little
       if(roomShadeChoice == 1)
       {
           // Increase the airConditionerCapacity by 15 percent
           airConditionerCapacity += (airConditionerCapacity * 0.15);
       }
       // If the shade the room gets is abundant
       else if(roomShadeChoice == 3)
       {
           // Decrease the airConditionerCapacity by 10 percent      
           airConditionerCapacity -= (airConditionerCapacity * 0.10);          
       }
       // This contains the text which is printed first on the output
       String outputStart = "Air conditioning Window Unit Cooling Capacity";
       // Printing the starting text and area of the room
       System.out.println(outputStart);
       System.out.println("The area of the room is " + roomArea + " sqft");
       // Printing the shade of the room
       System.out.print("The amount of shade that room gets is ");
       if(roomShadeChoice == 1)
       {
           System.out.println("little");
       }
       else if(roomShadeChoice == 3)
       {
           System.out.println("abundant");
       }
       else
       {
           System.out.println("moderate");
       }
       // Printing the BTU's per hour needed for room to cool down
       System.out.printf("The number of BTU's per hour that are needed to cool the room : %d\n",(int)Math.ceil(airConditionerCapacity));
   }
}

Sample Output: