В чем дело?
package com.javarush.task.task19.task1924;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
/*
Замена чисел
*/
public class Solution {
public static Map<Integer, String> map = new HashMap<Integer, String>();
static {
map.put(0,"ноль");
map.put(1,"один");
map.put(2,"два");
map.put(3,"три");
map.put(4,"четыре");
map.put(5,"пять");
map.put(6,"шесть");
map.put(7,"семь");
map.put(8,"восемь");
map.put(9,"девять");
map.put(10,"десять");
map.put(11,"одиннадцать");
map.put(12,"двенадцать");
}
public static void main(String[] args) throws IOException {
ArrayList<String> strings = new ArrayList<>();
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String s = reader.readLine();
BufferedReader fileReader = new BufferedReader(new FileReader(s));
reader.close();
String s1;
while((s1 = fileReader.readLine())!=null){
String[] splitter = s1.split("(\\D*)");
for (int i = 0; i < splitter.length; i++)
for (Map.Entry<Integer,String> pair: map.entrySet())
if(map.containsKey(splitter[i]))
System.out.print(pair.getValue());
}
fileReader.close();
}
}