Thanks for you gold! Kind Stranger here i solved yourproblem

package test;

import java.util.Scanner;

//btw you need an if statement for your occupied rooms they can be more than rooms in total. GL & HF --verd
public class HotelOccupancy {

    public static void main(String[] args) {

        int floor, rooms, occupiedRooms, totalRooms = 0, totalOccupiedRooms = 0;
        double occupancyRate;

        Scanner in = new Scanner(System.in);
        System.out.println("Enter the number of floors:");
        floor = in.nextInt();

        while (floor < 1) {
            System.out.println("The number of floors must be at least 1 or above.");
            System.out.println("Enter the number of floors:");
            floor = in.nextInt();

        }//changed here was: "{"

        for (int count = 1; count<= floor; count++) {
            System.out.println("Enter the number of rooms in a floor " +count+ ":");
            rooms = in.nextInt();

            while (rooms < 10) {
                System.out.println("The number of rooms must be at least 10 or above.");
                System.out.println("Enter the number of rooms in a floor " +count+ ":");
                rooms = in.nextInt();
            }


            System.out.println("Enter the number of occupied rooms in a floor " +count+ ":");
            occupiedRooms = in.nextInt();

            totalRooms = totalRooms + rooms;
            totalOccupiedRooms = totalOccupiedRooms + occupiedRooms;

        }

        System.out.println("Total number of rooms = "+totalRooms);
        System.out.println("Total number of occupied rooms = "+totalOccupiedRooms);
        System.out.println("Total number of vacant rooms = " +(totalRooms - totalOccupiedRooms));
        System.out.println("Total rate of occupancy = "+((double)totalOccupiedRooms/totalRooms));




         }

//not his: "}"
// not this: "}"
}