Question

I need to output Number of rooms : , Occupied rooms:, Vacant rooms:, and Occupancy rate:, I've written the java program but I can not get the output I need. What am I doing wrong here? This is a java program and I'm not to use anything advanced, just beginner java programming. Any help would be appreciated

import java.util.Scanner; // Needed for the Scanner class

/**
* This program will read in the number of floors the resort
* contains and the number of rooms occupied.
* @author Jessica
* @version 10/25/19
*/
public class ResortAccomidations
{
public static void main(String[] args)
{
int totalNumberOfOccupiedRooms = 0; // Total number of floors
int totalNumberOfRooms = 0; // Total number of rooms
  
Scanner in = new Scanner(System.in); // Scanner object for user input
  
System.out.print("How many floors does the resort have?: "); // Get number of floors in resort
int floor = in.nextInt(); // To store number of floors
  
while(floor < 1) // Validate input
{
System.out.print("INVALID. How many floors does the resort have?: "); // Correct floors
floor = in.nextInt(); // To store correct number of floors
}
for(int i = 0; i<floor; i++) // Initialize floor at 0, test that floor is <0, increase floor per user input
{
System.out.println("\nFloor " + (i + 1) ); // Displays floor
System.out.print("How many rooms?: "); // Get how many rooms
int rooms = in.nextInt(); // Store number of rooms
while(rooms > 10) // While rooms no greater than 10
{
System.out.print("INVALID. How many rooms?: "); // Validate input > 10
rooms = in.nextInt(); // Store correct number of rooms
totalNumberOfRooms = totalNumberOfRooms + rooms; // Add rooms to total number of rooms   
}
System.out.print("How many rooms occupied?: "); // Get number of rooms occupied
int occupied = in.nextInt(); // Store number of rooms occupied
while(occupied > rooms) // While occupied do not exceed rooms
{
System.out.print("INVALID. How many rooms occupied?: "); //Validate occupied do not exceed rooms
occupied = in.nextInt(); // Store correct number of rooms occupied
}   
totalNumberOfOccupiedRooms = totalNumberOfOccupiedRooms + occupied; // Add occupied to total number of occupied rooms   
}
int vacancies = totalNumberOfRooms - totalNumberOfOccupiedRooms; // Vacancies
vacancies = in.nextInt(); // Store vacancies
int occupancy = (totalNumberOfOccupiedRooms / totalNumberOfRooms) * 100; // Occupancy rate
occupancy = in.nextInt();

System.out.printf("Number of rooms: ", + totalNumberOfRooms);
  
}
}

Answer 1

Answer:

import java.util.Scanner; // Needed for the Scanner class

/**
* This program will read in the number of floors the resort
* contains and the number of rooms occupied.
* @author Jessica
* @version 10/25/19
*/
public class ResortAccomidations
{
public static void main(String[] args)
{
int totalNumberOfOccupiedRooms = 0; // Total number of floors
int totalNumberOfRooms = 0; // Total number of rooms
  
Scanner in = new Scanner(System.in); // Scanner object for user input
  
System.out.print("How many floors does the resort have?: "); // Get number of floors in resort
int floor = in.nextInt(); // To store number of floors
  
while(floor < 1) // Validate input
{
System.out.print("INVALID. How many floors does the resort have?: "); // Correct floors
floor = in.nextInt(); // To store correct number of floors
}

for(int i = 0; i<floor; i++) // Initialize floor at 0, test that floor is <0, increase floor per user input
{
System.out.println("\nFloor " + (i + 1) ); // Displays floor
System.out.print("How many rooms?: "); // Get how many rooms
int rooms = in.nextInt(); // Store number of rooms
while(rooms > 10) // While rooms no greater than 10
{
System.out.print("INVALID. How many rooms?: "); // Validate input > 10
rooms = in.nextInt(); // Store correct number of rooms

}

totalNumberOfRooms = totalNumberOfRooms + rooms; // Add rooms to total number of rooms   

System.out.print("How many rooms occupied?: "); // Get number of rooms occupied
int occupied = in.nextInt(); // Store number of rooms occupied
while(occupied > rooms) // While occupied do not exceed rooms
{
System.out.print("INVALID. How many rooms occupied?: "); //Validate occupied do not exceed rooms
occupied = in.nextInt(); // Store correct number of rooms occupied
}

totalNumberOfOccupiedRooms = totalNumberOfOccupiedRooms + occupied; // Add occupied to total number of occupied rooms   

}

int vacancies = totalNumberOfRooms - totalNumberOfOccupiedRooms; // Vacancies
int occupancy = (totalNumberOfOccupiedRooms / totalNumberOfRooms) * 100; // Occupancy rate

System.out.printf("Number of rooms: %d, ", + totalNumberOfRooms);

System.out.printf("Occupied rooms: %d, ", + totalNumberOfOccupiedRooms);
System.out.printf("Vacant rooms: %d, ", + vacancies);
System.out.printf("Occupancy rate: %d", + occupancy);

  
}
}

this is the correct code, to print the output, you do not need to use in.nextInt() as it is used for taking in put from console.

At that point, the program was getting stopped. Instead use, System.out.printf().

Also,

totalNumberOfRooms = totalNumberOfRooms + rooms;

This line should be outside while loop as if user enters the correct number of rooms in the first time only, then the rooms were not getting added to the total number of rooms variable.

Output:

Hope you like it!

Please provide comments if you have any doubts!

How many floors does the resort have? : 2, Floor 1 How many rooms?: 1 How many rooms occupied?: 0 Floor 2 How many rooms?: 4 How many rooms occupied?: 2 Number of rooms: 5, Occupied rooms: 2, Vacant rooms: 3, Occupancy rate: 0