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);
}
}
Answer:
6ft
Explanation:
Step 1:
import java.util.Scanner;
class AreaOfRectangle {
public static void main (String[] args)
{
Scanner scanner = new Scanner(System.in);
System.out.println("Enter the length of Rectangle:");
double length = scanner.nextDouble();
System.out.println("Enter the width of Rectangle:");
double width = scanner.nextDouble();
//Area = length*width;
double area = length*width;
System.out.println("Area of Rectangle is:"+area);
}
}
Output
Enter the length of Rectangle:
2
Enter the width of Rectangle:
3
Area of Rectangle is:6.0
