Не могу понять, что от меня хотят. Параметры, которые ввожу в args:
-c "Шорты пляжные черные с кармано" "17.00 " "152 "package com.javarush.task.task18.task1827;
import java.util.Scanner;
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner(System.in);
if(args[0].equals("-c")){
String fileName = sc.nextLine();
String id = getFromFile(fileName);
//System.out.println(id); // для проверки id
putToFile(fileName,"\n" + id + args[1] + args[2] + args[3]);
}
sc.close();
}
public static String getFromFile(String fileName) throws IOException{
String line, result = null;
File file = new File(fileName);
FileReader fr = new FileReader(file);
BufferedReader reader = new BufferedReader(fr);
while (true){
line = reader.readLine();
if(line == null){break;}
result = line;
}
fr.close();
reader.close();
String resultLine = result.substring(0, 8).replace(" ", "");
Integer i = Integer.parseInt(resultLine);
i++;
resultLine = i.toString();
if(resultLine.length() < 8){
resultLine = resultLine + " ";
}
return resultLine;
}
public static void putToFile(String fileName, String text) throws IOException{
FileWriter writer = new FileWriter(fileName, true);
BufferedWriter bufferWriter = new BufferedWriter(writer);
bufferWriter.write(text);
bufferWriter.close();
}
}