vaadB

import java.util.Scanner;

public class Main {

    public static void main(String[] args)
    {
        Scanner s = new Scanner(System.in);
	 int numOfRooms; // variable that will receive number of rooms from user
     char duplex; // variable that will receive if its a duplex or not
     System.out.println(" please enter number of rooms");  // telling the user to enter data
     numOfRooms=s.nextInt(); //receiving data from user
     switch (numOfRooms) { //using switch in order to find the right price to pay
         case 3:
             System.out.println("the amount to pay is: 120 NIS");
             break;
         case 4:
             System.out.println("the amount to pay is 150 NIS");
             break;
         case 5: // the only case that matters if its a duplex
             System.out.println("is your house a duplex? Y/N");
             duplex= s.next().charAt(0);
             if (duplex == 'y' || duplex == 'Y') { //if its a duplex
                 System.out.println("the amount to pay is 200 NIS");
             }
             else if (duplex=='n'|| duplex=='N') { // if its not a duplex
                 System.out.println("the amount to pay is 180 NIS");
             }
             else{ // in case user entered wrong letter;
                 System.out.println("please enter Y or N?");
             }
             break;
         default: // in case user entered wrong nuber of rooms;
             System.out.println("you entered wrong number");
     }//switch


    }
}