Question

Use JAVA

Program #1: Hotel Occupancy: Write a program that calculates the occupancy rate for a hotel. The program should start by asking the user how many floors the hotel has. A for loop should then iterate once for each floor. In each iteration of the for loop, the program should ask the user for the number of rooms of the floor and how many of them are occupied. After all of the iterations are complete the program should display how many rooms the hotel has, how many of them are occupied, and the percentage of rooms that are occupied.

It is traditional that most hotels do not have a 13^thfloor. The for loop in this program should skip the entire thirteenth loop iteration.

Input validation: Do not accept a value of less than one for the number of floors. Do not accept a value of less than 10 for the number of rooms on a floor. Do not accept a value for occupied that is greater than rooms.

EXAMPLE INPUT TO USE FOR TESTING (just an example your program should work for all different inputs):

If the Number of Floors in the Hotel: 16

And the user to INPUT the following information for total rooms and occupied rooms:

Floor #	Total Rooms	Occupied Rooms
1	200	180
2	170	100
3	50	20
4	125	125
5	100	80
6	200	80
7	80	40
8	90	45
9	95	0
10	115	103
11	125	17
12	140	128
14	130	129
15	100	99
16	60	24

The output of your program for the above example should be (do NOT print the above chart!):

The Hotel has 1780 Total Rooms.

1170 of the Rooms are Occupied.

66 % of the Rooms are Occupied.

Program #2: Pennies: For the first day worked a person earns $1.00 for the entire day. For the second day worked the person’s daily pay is doubled to $2.00. For the third day worked the person’s daily pay is doubled again to $4.00. For each consecutive day a person works their daily pay is doubled in this way.

Write a program that asks a user to enter the number of days they worked and then calculates the pay they earned for each day along with the total pay they earned for all of the days.   The program output should be the pay for each day and the total pay earned for all the days.

Input Validation: Do not let the user enter a number of days that is less than 1. Use a loop to prompt them to enter another number for the number of days if they enter a number that is less than 1.

Make sure and format your output.

Example: This would be the output for a person who worked 4 days

Pay for Day 1: $1.00
Pay for Day 2: $2.00
Pay for Day 3: $4.00
Pay for Day 4: $8.00

TOTAL PAY FOR 4 DAYS: $15.00

Answer 1

1)Code - Main.java

import java.util.*;
public class Main
{
   public static void main(String[] args) {
   //variable declare
   int noOfFloors;
   //Scanner to read user input
   Scanner sc = new Scanner(System.in);
       System.out.println("Enter number of floors hotel has : ");
//get no of floors from user
       noOfFloors = sc.nextInt();
//number of floors check is greater then 1 or not
       while(noOfFloors<1){
       System.out.println("Enter number of floors hotel should be greater than 1 : ");
       noOfFloors = sc.nextInt();
       }
       //roomsPerFloor array and ocuupiedRoomsPerFloor array initialized
       int roomsPerFloor[] = new int[noOfFloors];
       int ocuupiedRoomsPerFloor[] = new int[noOfFloors];
       //use for loop to iterate
       for(int i = 0 ; i        //if the floor is 13 then skip
       if(i==12){
       roomsPerFloor[i] = 0;
       ocuupiedRoomsPerFloor[i]= 0;
       continue;
       }
       //enter number of room in floor
       System.out.println("Enter number of rooms on floor "+ (i+1)+":");
       roomsPerFloor[i] = sc.nextInt();
//check room are less then 10 then again ask to enter
       while(roomsPerFloor[i]<10){
       System.out.println("Enter number of rooms on floor "+ (i+1)+" greater than 10 :");
       roomsPerFloor[i] = sc.nextInt();
       }
       //ask again number of room occupied
       System.out.println("Enter number of occupied rooms on floor "+ (i+1)+":");
//store it
       ocuupiedRoomsPerFloor[i] = sc.nextInt();
      
       }
       //calculate total room and total occupied rooms
       int totalRooms=0,occupiedRooms = 0;
       for(int i = 0 ; i //sum up in array
       totalRooms+=roomsPerFloor[i];
       occupiedRooms+=ocuupiedRoomsPerFloor[i];
       }
       //print the details
       System.out.println("The hotel has "+totalRooms+" Total Rooms");
       System.out.println(occupiedRooms+" of Rooms are Occupied");
       float percOccupied = (float)occupiedRooms/totalRooms*100;
       System.out.println(percOccupied+"% of Rooms are Occupied");
   }
}

Screenshots -