Java Programs easy way

package java2;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

public class met {

      public static int output1;

      public static void fn(String s) {

            SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");

            sdf.setLenient(false);

            try {

                  Date d = sdf.parse(s);

                  String s1 = sdf.format(d);

                  if (s.equals(s1))

                        output1 = 1;

                  else

                        output1 = -1;

            } catch (ParseException e) {

                  output1 = -1;

            }

      }

      public static void main(String[] args) {

            fn("03/02/2014");

            System.out.println(output1);

      }

}