The output of my code is exactly the same as example but it won't pass the test...
package zh.codegym.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;
/*
月份编号
*/
public class Solution {
public static void main(String[] args) throws IOException {
//在此编写你的代码
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String m = reader.readLine();
ArrayList<String> list = new ArrayList<String>();
list.add("January");
list.add("February");
list.add("March");
list.add("April");
list.add("May");
list.add("June");
list.add("July");
list.add("Aguest");
list.add("September");
list.add("October");
list.add("November");
list.add("December");
int i = list.indexOf(m)+1;
System.out.println(m+" 是第 "+i+" 个月 ");
}
}