Почему не принимает?
package com.javarush.task.task19.task1923;
import java.io.*;
/*
Слова с цифрами
*/
public class Solution {
public static void main(String[] args) throws IOException {
FileReader reader = new FileReader(args[0]);
FileWriter writer = new FileWriter(args[1]);
StringBuilder builder = new StringBuilder();
while (reader.ready())
{
int i = reader.read();
builder.append((char) i);
}
String[] strArr = builder.toString().split(" ");
builder.setLength(0);
for (String s :
strArr) {
if (s.matches(".*\\d.*")) {
builder.append(s + " ");
}
}
builder.deleteCharAt(builder.length()-1);
writer.write(builder.toString());
reader.close();
writer.close();
}
}