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a guest Dec 3rd, 2019 92 Never
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  1. package paint;
  2. import java.util.Scanner;
  3.  
  4. public class paint {
  5.  
  6.     public static void main(String[] args) {
  7.         Scanner scnr = new Scanner(System.in);
  8.         double wallHeight = 0.0;
  9.         double wallWidth = 0.0;
  10.         double wallArea = 0.0;
  11.         double gallonsPaintNeeded = 0.0;
  12.         int x = 1;
  13.        
  14.         final double squareFeetPerGallons = 350.0;
  15.        
  16.         // Implement a do-while loop to ensure input is valid
  17.         do {
  18.         try {
  19.         // Prompt user to input wall's height
  20.         System.out.println("Enter wall height (feet): ");
  21.         wallHeight = scnr.nextDouble();
  22.         if (wallHeight > 0) {
  23.             x = 2;
  24.         }
  25.         }
  26.         catch(Exception e) {
  27.             System.out.println("Please enter a valid number");
  28.             wallHeight = scnr.nextDouble();
  29.         }
  30.         } while(x == 1);
  31. }
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