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In order to paint a wall that has a number of windows, we want to know its area. Each window has a size of 2 ft by 3 ft. Write a program that reads the width and height of the wall and the number of windows, using the prompts Wall width: Wall height: Number of windows: Then print the area with two digits after the decimal point: c

Answer :

100051750

Answer:

The program in Java will be:

import java.util.Scanner;

public class Paint

{

  public static void main(String[] args)

  {

      final int COVERAGE = 350;  //paint covers 350 sq ft/gal

      final int DOOR = 20;

  final int WINDOW = 15;    

  //declare integers length, width, and height;

  int length, width, height, doors, windows;

  //declare double totalSqFt;

  double totalSqFt;

      //declare double paintNeeded;

  double paintNeeded;

    //declare and initialize Scanner object

  Scanner scan = new Scanner (System.in);

  //Prompt for and read in the length of the room

  // finish this -- length =  

  System.out.print("Enter the length of the room: ");

  length = scan.nextInt();

  //Prompt for and read in the width of the room

      System.out.print("Enter width: ");

  width = scan.nextInt();

      //Prompt for and read in the height of the room

  System.out.print("Enter height: ");

  height = scan.nextInt();

      //Prompt for and enter the number of doors    

  System.out.println("Enter the number of doors: ");

  doors = scan.nextInt();

  //Prompt for and enter the number of windows

  System.out.println("Enter the number of windows: ");

  windows = scan.nextInt();

  //Compute the total square feet to be painted--think

     //about the dimensions of each wall

      totalSqFt = 2 * width * height + 2 * length * height - DOOR*doors - WINDOW*windows;

      //Compute the amount of paint needed

      paintNeeded = totalSqFt / COVERAGE;

      //Print the length, width, and height of the room and the

      //number of gallons of paint needed.

  System.out.println("Length= " + length + "\nWidth= " + width +  "\nHeight= " + height + "\nNumber of doors: " + doors + "\nNumber of windows: " + windows + "\nGallons of Paint Needed= " + paintNeeded);Explanation:

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