Finding data inside a file

It doesn't accept args[0] as a search. It accepts args[0] + " ". The space identifies when the id ends. But the best way is to use splt() method, to get an array. The condition would be like:

String[] entities = line.split(" ");
                    if(Objects.equals(entities[0], args[0])){
                        System.out.println(line);
                        break;
                    }

At first I didn't get what should I print. They want you to print whole line, including id, wich starts with "id" passed as first argument in main.

Hello community. What I am doing is the following : 1. I read a whole line from the file with BufferedReader(new InputStreamReader(fileInput)) 2. I Iterated the lines 3. For each line iterated, I ask the following if (line.contains(args[0])) 4. if it is true, I print the whole line. It fails the requirement, but I don't understand how the file is organized or the format to print the information. Could you give me a hint?

Possible point of confusion. The directions say that the program has a single argument "an int". However, the args array in main is a String array. I think what they mean is that it's a string that can be parsed as an int?

hint: the output should include the id.

I had a good laugh at myself! what i did for this was absolutely insane, i thought i had to get and parse the values (int, string double ) this led me down quite the road! i learnt a ton! and then, it suddenly dawned on me that all this task required was checking the id value and printing the line. enormously more simple than i ended up doing!

I brushed over where it said "productName is a String — it can contain spaces". That messed me up for a while. A good reminder to read the requirements carefully.

Sometimes I feel that maybe I am missing something. Is there somewhere a file which for each task which I need to use ? So far I just created it myself

It does work with the testfile, but the verification fails anyways. Any suggestions as to what the problem is?

wich is the byte that says a separate line 10 or 13?