Валидартор не принимает, хотя решение правильное
package com.javarush.task.task19.task1925;
import java.io.*;
import java.util.StringJoiner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader1 = new BufferedReader(new FileReader(args[0]));
BufferedWriter writer = new BufferedWriter((new FileWriter(args[1])));
while (reader1.ready()){
String line = reader1.readLine();
String [] lines = line.split(" ");
// Pattern p = Pattern.compile("\\b[A-Za-z,А-Я-а-я]{7,}\\b");
StringJoiner stringJoiner = new StringJoiner(",");
for (int i = 0; i < lines.length; i++) {
if(lines[i].length() > 6){
stringJoiner.add(lines[i]);
}
}
writer.write(stringJoiner.toString());
}
reader1.close();
writer.close();
}
}