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/*P4Q12
 * Name:Wang Chaoran
 *Description: Displaying the first days of each month) Write a program that
 * prompts the user to enter the year and first day of the year, and displays
 * the first day of each month in the year on the console. For example, if the
 * user entered the year 2005, and 6 for Saturday, January 1, 2005, your program
 * should display the following output:
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[Page 127]
January 1, 2005 is Saturday
...
December 1, 2005 is Thursday
*/
import java.util.Scanner;
public class P4Q12
{
  public static void main(String[] args)
  {
    Scanner scan = new Scanner(System.in);
    System.out.println("Please enter the year(eg.2005):");
    int year = scan.nextInt();
    int leapDay = 0,sum = 0;
    System.out.println("Please enter the first day of the year(eg.6 for Saturday)");

    sum = scan.nextInt();
   
    String dayString ="",monthString="";
    //judgement of leap year
    if(((year%4==0)&&(year%100!=0))||(year%400==0))
        leapDay=29;
             else
               leapDay=28;
        
    System.out.println("PLease enter the first day of the year(eg.6 for Saturday)");
   
    for(int month=1;month<=12;month++)
    {
      //Obtain the dayString
     switch(sum%7)
    {
      case 1:dayString = "Monday";
      break;
      case 2:dayString = "Tuesday";
      break;
      case 3:dayString = "Wednesday";
      break;
      case 4:dayString = "Thursday";
      break;
      case 5:dayString = "Friday";
      break;
      case 6:dayString = "Saturday";
      break;
      case 7:dayString = "Sunday";
    }
     //Obtain the monthString + facilitate the dayString
    switch(month)
    {
     
      case 1: sum+=31;monthString="January";
      break;
      case 2: sum+=leapDay;monthString="February";
      break;
      case 3:sum+=31;monthString="March";
      break;
      case 4:sum+=30;monthString="April";
      break;
      case 5:sum+=31;monthString="May";
      break;
      case 6:sum+=30;monthString="June";
      break;
      case 7:sum+=31;monthString="July";
      break;
      case 8:sum+=31;monthString="August";
      break;
      case 9:sum+=30;monthString="September";
      break;
      case 10:sum+=31;monthString="October";
      break;
      case 11:sum+=30;monthString="November";
      break;
      case 12:sum+=31;monthString="December";
      
    }
    //Display the answer
    System.out.printf("%-9s%-2s%-9s%-4s%-9s\n",monthString," 1, ",year," is ",dayString);
  
  }
}
}