Code ni sya sa Cocktail

/*
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 * and open the template in the editor.
 */
package javaapplication1;

import java.util.Scanner;
import static javafx.scene.input.KeyCode.O;

/**
 *
 * @author User
 */
public class JavaApplication1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
       Scanner sc1 = new Scanner(System.in);
       double $band= 0;
       double sTRF = 0;



        System.out.println("Enter Contract Number: ");
        int contract = sc.nextInt();
      //Input sa contract


      if(contract>=10000 && contract<=99999){
          //inig true ni musulod sya sa mga code
          //nasa sulod sad ang uban input para inig dili mo true ang statement mo error sya diretso


System.out.println("Enter First Name: ");
String fName = sc1.nextLine();
System.out.println("Enter Last Name: ");
String lName = sc1.nextLine();
        //input sa name

System.out.println("Enter Month: ");
int month = sc.nextInt();
          //input sa month

          String $month = "Unknown";
          if(month>=1 && month<=12){
                //if mo true ang statement diria moproceed sya sa mga designated na mga codes apil na ang mga uban pa inputs
                //Reason ngano gisulod nako kay para inig false ang statement di sya mo proceed sa uban pang inputs nya mo error sya diretso



          switch (month){
            case 1:
               $month = "January";
                break;
            case 2:
                $month = ("February");
                break;
            case 3:
                $month = ("March");
                break;
            case 4:
                $month = ("April");
                break;
            case 5:
                $month = ("May");
                break;
            case 6:
                $month = ("June");
                break;
            case 7:
                $month = ("July");
                break;
            case 8:
                $month = ("August");
                break;
            case 9:
                $month = ("September");
                break;
            case 10:
                $month = ("October");
                break;
            case 11:
                $month = ("November");
                break;
            case 12:
                $month = ("December");
                break;
            default:
                $month = ("Error");
          }

System.out.println("Enter Day: ");
int day = sc.nextInt();



        System.out.println("Contract: " + contract);
       System.out.println("First Name: " + fName);
       System.out.println("Last Name: " + lName);


        if (day>=1 && day<=31){

            System.out.println("Enter Year: ");
int year = sc.nextInt();


          if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12){
            if (day>=1 && day<=31){
                System.out.println($month + " " + day + " " + year);
            }
            else {
                System.out.println("Error");
            }
        }
        else if (month == 4 || month == 6 || month == 9 || month == 11){
            if (day>=1 && day<=30){
                System.out.println($month + " " + day + " " + year);
            }
            else {
                System.out.println("Error");
            }
            }
        else if (month == 2) {
            if (day>=1 && day<=28){
                System.out.println($month + " " + day + " " + year);
            }
            else {
                System.out.println("Error");

            }
        }
        else {
              System.out.println("Error");
        }


   //input sad ning sa ubos
System.out.println("Enter Number of Guests: ");
int guest = sc.nextInt();
System.out.println("Cocktail? (Y or N): ");
String cL = sc1.nextLine();
System.out.println("Appetizer? (Y or N): ");
String aP = sc1.nextLine();
System.out.println("Dinner? (Y or N): ");
String dR = sc1.nextLine();
System.out.println("Band? (Y or N): ");
String _band = sc1.nextLine();
//nasulod sya diria kay tungod para mo error inig mali ang day pagkainput

  double bguest = 5*guest;


System.out.println("Contract: " + contract);
       System.out.println("First Name: " + fName);
       System.out.println("Last Name: " + lName);
       System.out.println("Guests: " + guest);



              if (cL.equalsIgnoreCase("Yes")){
            cL = "Yes";
        }
              else if (cL.equalsIgnoreCase("No")){
            cL = "No";
            }
             else {
                 cL = "Yes";
             }




        if (aP.equalsIgnoreCase("Yes")){
            aP = "Yes";}
        else if (aP.equalsIgnoreCase("Yes")){
                aP = "No";
            }
            else{
                aP = "Yes";
            }


         if (dR .equalsIgnoreCase("Yes")){
             dR = "Yes";
         }

         else if (dR .equalsIgnoreCase("No")){
                 dR = "No";
             }
         else{
                 dR = "Yes";
         }



        if (cL == "Yes" && aP == "No" && dR == "No" ){
            sTRF = + 15;
        }
        else if(cL == "No" && aP == "Yes" && dR == "No" ){
            sTRF  = + 12;
        }
        else if(cL == "No" && aP == "No" && dR == "Yes" ){
            sTRF  = + 19;
        }
        else if (cL == "Yes" && aP == "Yes" && dR == "No" ){
            sTRF  = + 22;
        }
        else if (cL == "Yes" && aP == "No" && dR == "Yes" ){
            sTRF  = + 26;
        }
        else if (cL == "No" && aP == "Yes" && dR == "Yes" ){
            sTRF  = + 24;
        }
        else if (cL == "Yes" && aP == "Yes" && dR == "Yes" ){
            sTRF  = + 36;
        }
        else {
            System.out.println("ERROR!");
        }


        if(_band.equalsIgnoreCase("Yes")){
            $band = + 500;
        }

        double tRF = (bguest * sTRF) + $band;
        System.out.println("Total Fee Revenue: " + tRF);




          }
          else {
              System.out.println("Error!");
          }
      }
      else {
          System.out.println("Error!");
      }

      }
      else {
          System.out.println("ERROR!");
      }
    }
}