Куда смотреть?
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;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/*
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> list = new ArrayList<>();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String filename = bufferedReader.readLine();
bufferedReader.close();
BufferedReader bufferedReader2 = new BufferedReader(new FileReader(filename));
String line = "";
while ((line = bufferedReader2.readLine()) != null) {
list.add(line);
}
bufferedReader2.close();
for (String stroka : list) {
StringBuilder stringBuilder = new StringBuilder();
String[] words = stroka.split(" ");
for (String word : words) {
stringBuilder.append(word).append(" ");
Pattern pattern = Pattern.compile("\\b\\d+");
Matcher matcher = pattern.matcher(word);
while (matcher.find()) {
Integer value = 0;
try {
value = Integer.parseInt(matcher.group());
} catch (Exception e) {
System.out.println("Exception");
}
if (value <= 12) {
for (Map.Entry<Integer, String> pair : map.entrySet()) {
if (pair.getKey().equals(value)) {
int index = stringBuilder.indexOf(word);
stringBuilder.delete(index, stringBuilder.length());
stringBuilder.append(pair.getValue()).append(" ");
}
}
}
}
}
System.out.println(stringBuilder.toString());
}
}
}
// \b[1-9]\b - 1
// \b[1-9][1-2]\b - 12