Input Validation: Do not accept a number less than one for the number of floors. Do not accept a number less than 10 for the number of rooms on a floor. The equation is: Occupancy rate = number of rooms occupied / total number of rooms. As far as the code is concerned, I think it is good except I don't know how to make it to iterate once for each floor. Here's what I have:

import java.util.Scanner; public class Hotel { public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); String input; //To hold the user's input final int MIN_FLOORS = 1; //Minimum amount of floors final int MIN_ROOMS = 10; //Minimum amount of rooms per floor int floors; //Number of floors in hotel int rooms; //Number of available rooms in each floor int occrooms; //Number of rooms occupied int totalrooms; //Number of total rooms double occrate; //Occupancy rate int vacant; //Number of vacant rooms System.out.println("How many floors are in the hotel? "); //Get the number of floors in the hotel do //Validate the number entered. { System.out.println("The number of floors " + "must be at least " + MIN_FLOORS); floors = keyboard.nextInt(); } while (floors < MIN_FLOORS); System.out.println("How many rooms are on each floor?"); //Get the number of rooms in each floor do //Validate the number entered. { System.out.println("The number " + "of rooms must be greater than " + MIN_ROOMS); rooms = keyboard.nextInt(); } while(rooms < MIN_ROOMS); //Get the amount of rooms occupied. System.out.println("How many rooms are occupied?"); occrooms = keyboard.nextInt(); totalrooms = (floors * rooms); occrate = ((double)occrooms / totalrooms); vacant = (totalrooms - occrooms); //Display the results System.out.println("There " + "are " + totalrooms + " total rooms in the hotel, the number of rooms occupied are " + occrooms + ", " + vacant + " rooms are vacant, and the occupancy rate for the hotel is " + occrate + "."); //End the program. System.exit(0); } }

Thank you!