Help me
package com.javarush.task.task08.task0828;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/*
Номер месяца
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<String> list = new ArrayList<String>();
int nMonth = 0;
String s = reader.readLine();
list.add("January");
list.add("Febryary");
list.add("March");
list.add("April");
list.add("May");
list.add("June");
list.add("July");
list.add("August");
list.add("September");
list.add("October");
list.add("November");
list.add("December");
for(int i=0; i<list.size();i++){
if((list.get(i)).equals(s)){
nMonth = i+1;
}
}
System.out.println(s + " is the " + nMonth + " month");
}
}