data, Java - rextester

data

//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_111

import java.util.*;
import java.lang.*;
import java.util.Scanner;
import java.util.Date;
import java.util.Calendar;
import java.text.SimpleDateFormat;
import java.text.ParseException;

class Rextester
{  
     public static String getDay(String day, String month, String year)
     {
         String answer = "";
         try{    
             String fullDate = year+"/"+month+"/"+day;
             GregorianCalendar gc = new GregorianCalendar();
             SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd"); 
             Date dt = df.parse(fullDate);
             System.out.println (dt);
             gc.setTime(dt);
             int index = gc.get( Calendar.DAY_OF_WEEK ) ;
             answer = String.toString(index);
             }
         catch ( ParseException prsE ) {
                prsE.printStackTrace();
             }
             return  answer;
    }
    
    public static void main(String args[])
    {
        Scanner in = new Scanner(System.in);
        String month = in.next();
        String day = in.next();
        String year = in.next();
        
        System.out.println(getDay(day, month, year));
    }    
}


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