我正在尝试编写一个程序,提示用户输入酒店的楼层总数,每层楼的房间数量以及占用房间的数量.最后,它应显示房间总数,占用房间总数以及占用房间的百分比.我在显示占用房间的百分比方面遇到了问题.我正在使用所有的int数字.

这是我提出的等式：

roomsOccPercentage = (totalRoomsOccupied * 100) / totalRooms ;

当我将程序提交给我教授的Java运行程序时,它会显示：

65 % of the Rooms are occupied.

但是我教授提供的那个输出了66％的答案,所以程序不接受我的文件.

有谁知道我做错了什么？它是DecimalFormat错误吗？

编辑：这是整个代码

import java.util.Scanner;

import java.text.DecimalFormat;

public class hw7_1 {

public static void main(String[]args) {

Scanner keyboard = new Scanner(System.in);

DecimalFormat formatter = new DecimalFormat("#0");

int totalFloors;

int totalRooms = 0;

int numFloors;

int numRooms;

int roomsOccupied;

int totalRoomsOccupied = 0;

int roomsOccPercentage = 0;

//prompting users to input # of floors, no inputs below 1 floor

do {

System.out.println("Please enter the number of floors in the hotel: ");

numFloors = keyboard.nextInt();

if (numFloors < 1) {

System.out.println("You have entered an invalid number of floors. ");

}

}

while (numFloors < 1);

//for loops on how many rooms on each hotel floors

for ( int Floors = 1; Floors <= numFloors; Floors++) {

if (Floors == 13 ) {

continue;

}

do {

System.out.println("Please enter the number of rooms on floor #: " + Floors );

numRooms = keyboard.nextInt();

if (numRooms < 10) {

System.out.println("You have entered an invalid number of rooms. ");

}

} while (numRooms < 10);

System.out.println("Please enter the number of occupied rooms on floor #: " + Floors);

roomsOccupied = keyboard.nextInt();

totalRooms = totalRooms + numRooms;

totalRoomsOccupied = totalRoomsOccupied + roomsOccupied;

roomsOccPercentage = (totalRoomsOccupied * 100) / totalRooms ;

}

System.out.println("\nThe hotel has a total of " + totalRooms + " rooms.");

System.out.println(totalRoomsOccupied + " of the rooms are occupied.");

System.out.println(formatter.format(roomsOccPercentage) + "% of the rooms are occupied.");

}

}