package paint;
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;
        int x = 1;

        final double squareFeetPerGallons = 350.0;

        // Implement a do-while loop to ensure input is valid
        do {
        try {
        // Prompt user to input wall's height
        System.out.println("Enter wall height (feet): ");
        wallHeight = scnr.nextDouble();
        if (wallHeight > 0) {
        	x = 2;
        }
        }
        catch(Exception e) {
        	System.out.println("Please enter a valid number");
        	wallHeight = scnr.nextDouble();
        }
        } while(x == 1);
}