Hm, do not pass by, but help...

Question about the task

Resolved

My code works flawlessly. I checked it on my computer 100500+ times. But the test does not want to pass ... strange. Who will say why?

CrUD for a table inside a file
Read a file name for CrUD operations from the console

The program runs with one of the following sets of arguments:
-u id productName price quantity
-d id

Argument values:
where id is 8 characters
productName is 30 characters
price is 8 characters
quantity is 4 characters
-u updates the data for the product with the specified id
-d performs the physical deletion of the product with the specified id (all data related to the passed id)

The file data is stored in the following order (without separating spaces):
id productName price quantity
Each data field is padded with spaces up to its length

Example:
19847 Swim trunks, blue 159.00 12 198479 Swim trunks, black with printe173.00 17 19847983Snowboard jacket with reflecti10173.991234

Requirements:

The program should read a file name for CrUD operations from the console.
When you run the program without arguments, the product list must remain unchanged.
When the program is started with the arguments "-u id productName price quantity", the product information in the file should be updated.
When the program is started with the arguments "-d id", the line for the product with the specified id should be removed from the file.
The file streams must be closed.

package com.codegym.task.task18.task1828; /* Prices 2 */ import java.io.*; import java.util.Scanner; public class Solution { public static void main(String[] args) throws Exception { if (args.length < 2) { return; } String id; String productName = ""; String price = ""; String quantity = ""; String tmpStr; String tmpString; StringBuilder str = new StringBuilder(); Scanner scanner = new Scanner(System.in); String fileName = scanner.nextLine(); File tmp_fileName = File.createTempFile("TMP", ".txt"); BufferedWriter tmp_file = new BufferedWriter(new FileWriter(tmp_fileName)); BufferedReader fileRead = new BufferedReader(new FileReader(fileName)); one: { if (args.length == 2 && args[0].equals("-d")) { id = args[1]; } else if (args.length > 4 && args[0].equals("-u")) { id = args[1]; price = args[args.length - 2]; quantity = args[args.length - 1]; if (args.length == 5) { productName = args[2]; break one; } int difference = args.length - 3; for (int i = 2; i <= difference; i++) { productName += args[i]; productName += " "; } } else { return; } } id = addSpaces(id, 8); productName = addSpaces(productName, 30); price = addSpaces(price, 8); quantity = addSpaces(quantity, 4); str.append(id).append(productName).append(price).append(quantity); while (fileRead.ready()) { tmpStr = fileRead.readLine(); tmpString = tmpStr.substring(0, 8); if (tmpString.equals(id) && args[0].equals("-d")) { continue; } else if (tmpString.equals(id) && args[0].equals("-u")) { tmpStr = str.toString(); } tmp_file.write(tmpStr); tmp_file.newLine(); } scanner.close(); fileRead.close(); tmp_file.close(); BufferedWriter fileWrite = new BufferedWriter(new FileWriter(fileName)); BufferedReader tmp_fileRead = new BufferedReader(new FileReader(tmp_fileName)); while (tmp_fileRead.ready()) { tmpStr = tmp_fileRead.readLine(); fileWrite.write(tmpStr); fileWrite.newLine(); } fileWrite.close(); tmp_fileRead.close(); tmp_fileName.deleteOnExit(); } public static String addSpaces(String str, int count) { while (str.length() < count) { str += " "; } if (str.length() > count) str = str.substring(0, count); return str; } }