Christmas countdown Java

Assignment:

Write a program that reads in a date and calculates the number of days until Christmas for that year . You can assume that the date entered is before December 25 of that year.

Dates will be entered as 8 digit numbers representing: MMDDYYYY You are not allow to use arrays, Date, or Time.

Here is a sample input and its corresponding output:

Enter date: 12122014

Date is: December 12, 2014

Days until Christmas: 13

And here is my work: public static void main(String[] args) {

    //declaring variables 

    System.out.print("Enter Date: ");
    Scanner scan = new Scanner( System.in );
    int date = scan.nextInt();
    int year = date%10000;
    date = date/10000;
    int day = date %100;
    int month = date/100;
    int numdays = 
    int daystil = //days until christmas
    int month;

String monthString;

    //Classifying months

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

String daystilString;
    switch ( daystil )
    {
    case 1 : daystilString = if ((year % 4 == 0) && !(year % 100 == 0) || (year % 400 == 0)){
        360-day;

    }else ;{
        359-day;

    }
    case 2 : daystilString = if ((year % 4 == 0) && !(year % 100 == 0) || (year % 400 == 0)){
        329-day;
    }else;{
        328-day;

    case 3 : daystilString = 300-day;
    case 4 : daystilString = 269-day;
    case 5 : daystilString = 239-day;
    case 6 : daystilString = 208-day;
    case 7 : daystilString = 178-day;
    case 8 : daystilString = 147-day;
    case 9 : dasytilString = 116-day;
    case 10 : daystilString = 86-day;
    case 11 : daystilString = 55-day;
    case 12 : daystilString = 25-day;
    }break;


    default: System.out.println("Invalid month.");




        if (month == 1){


            System.out.println("Date is: January ");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 2) {


            System.out.println("Date is: February");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 3){


            System.out.println("Date is: March");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 4){


            System.out.println("Date is: April");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 5){


            System.out.println("Date is: May");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 6){


            System.out.println("Date is: June");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 7){


            System.out.println("Date is: July");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 8){


            System.out.println("Date is: August");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 9){



            System.out.println("Date is: September");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 10){



            System.out.println("Date is: October");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 11){


            System.out.println("Date is: November");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if (month == 12){


            System.out.println("Date is: December");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.format("\nDays until Christmas: ", daystil);
        }else if ((month == 12) && (day == 25));{


            System.out.println("Date is: December");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.println("\nMerry Christmans!");

        }else if ((month == 12) && (day >= 26));{

            System.out.println("Date is: December");
            System.out.format("%f, ", day);
            System.out.format("%f", year);
            System.out.println("\nInvalid input.");
        }
        scan.close();
    }}}}