Что не так ?

package com.javarush.task.task18.task1828; /* Прайсы 2 */ import java.io.*; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Solution { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String nameFile; nameFile = br.readLine(); switch (args[0]){ case "-d": delete(nameFile, args[1]); break; case "-u": update(nameFile, args[1], args[2], args[3], args[4]); break; } } private static void update(String nameFile, String id, String productName, String price, String quantity) throws IOException { Pattern p = Pattern.compile("^\\d+"); File upFile = new File (nameFile); BufferedReader brf = new BufferedReader(new FileReader(upFile)); File copyFile = new File(upFile.getParent(),"copy.txt"); BufferedWriter brOut = new BufferedWriter(new FileWriter(copyFile, true)); String line; while((line=brf.readLine())!=null){ Matcher m = p.matcher(line); if(m.find()){ String iD = line.substring(0,m.end()); if (!iD.equals(id)){ brOut.write(line); brOut.newLine(); } else { StringBuilder strB = new StringBuilder(); String nameID = String.format("%-8s", id); strB.append(nameID); String nameProduct = String.format("%-30s", productName); strB.append(nameProduct); String namePrice = String.format("%-8s", price); strB.append(namePrice); String nameQuantity = String.format("%-4s", quantity); strB.append(nameQuantity); brOut.write(strB.toString()); brOut.newLine(); } } } brf.close(); brOut.close(); upFile.delete(); copyFile.renameTo(upFile); } private static void delete(String nameFile, String id) throws IOException { Pattern p = Pattern.compile("^\\d+"); File upFile = new File (nameFile); BufferedReader brf = new BufferedReader(new FileReader(upFile)); File copyFile = new File(upFile.getParent(),"copy.txt"); BufferedWriter brOut = new BufferedWriter(new FileWriter( copyFile, true)); String line ; while((line=brf.readLine())!=null){ Matcher m = p.matcher(line); if(m.find()) { String iD = line.substring(0, m.end()); if (!iD.equals(id)) { brOut.write(line); brOut.newLine(); } } } brf.close(); brOut.close(); upFile.delete(); copyFile.renameTo(upFile); } }