help pls

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        ArrayList<String> months = new ArrayList<String>(Arrays.asList("January", "February", "March", "April",
"May", "June", "July", "August", "September", "October", "November", "December"));
        String s = reader.readLine();
        for(String d : months) {
           if(s.equals(d)) {
               System.out.println(s+ " is the "+(months.indexOf(d)+1)+" month.");
               break;
           }        }        }            }