/*
    MultiwayBranch5.java
    David G. Klick
    September 21, 2007
    CIS 111
 
    Demonstrates switch statement with fall-through
    (purposefully missing 'break' statements). This
    version takes leap years into account. No checking
    is done to see if the year is valid, so the user
    could enter a value like -50.
*/

public class MultiwayBranch5 extends CIS111App {
    public static void main(String[] args) {
        int days = 0;
        
        int month = getInt("What month number is it? ");
        int year = getInt("What year is it? ");
        
        print(month + "/" + year + " has ");
        switch (month) {
            case  1: 
            case  3: 
            case  5: 
            case  7: 
            case  8: 
            case  10: 
            case  12: 
               days = 31;
               break;
            case  4: 
            case  6: 
            case  9: 
            case 11: 
               days = 30;
               break;
            case  2:
               if ( ((year % 4 == 0) && !(year % 100 == 0))
                  || (year % 400 == 0)) {
                  days = 29;
               } else {
                  days = 28;
               }
               break;
            default: println("*Invalid month specified*");
        }
        if (days > 0) {
           println(days + " days");
        }
    }
}