шось не так :с
Не понимаю что...
package com.javarush.task.task19.task1918;
/*
Знакомство с тегами
*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
reader.close();
FileReader in = new FileReader(fileName);
StringBuffer buffer = new StringBuffer();
while (in.ready()) {
int data = in.read();
buffer.append((char) data);
}
String result = buffer.toString();
in.close();
System.out.println(result);
String tag = args[0];
if (args.length > 0) {
Pattern pattern = Pattern.compile("(?=(<("+tag+")>(?:(?1)|<(?!/\\2>)|[^<]*+)*+</\\2>))");
Matcher matcher = pattern.matcher(result);
while (matcher.find()) {
System.out.println(matcher.group(0));
String t = matcher.group(2);
if (t != null) System.out.println(t);
}
}
}
}