import java.util.Scanner;
public class Paint {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
double wallHeight = 0.0;
double wallWidth = 0.0;
double wallArea = 0.0;
double gallonsPaintNeeded = 0.0;
final double squareFeetPerGallons = 350.0;
// Implement a do-while loop to ensure input is valid
// Prompt user to input wall's height
do{
System.out.println("Enter wall height (feet): ");
wallHeight = scnr.nextDouble();
}while(wallHeight<=0);
// Implement a do-while loop to ensure input is valid
// Prompt user to input wall's width
do{
System.out.println("Enter wall width (feet): ");
wallWidth = scnr.nextDouble();
}while(wallWidth<=0);
// Calculate and output wall area
wallArea = wallHeight * wallWidth;
System.out.println("Wall area: " + wallArea + " square feet");
// Calculate and output the amount of paint (in gallons) needed to paint the wall
gallonsPaintNeeded = wallArea/squareFeetPerGallons;
System.out.println("Paint needed: " + gallonsPaintNeeded + " gallons");
}
}