Convert string representation of array back to int array in java

Question

just started programming with Java. If I have an array as follows stored in a .txt file:

[10, 22, 30, 55, 10, 20, 19]

How do I convert it back to a normal int[] array to be used within the code?

I need to be able to store it plainly in a txt file like this so I can make changes to it manually. I've used BufferedReader to read the array. How can I put the read array into an int[] array?

int[] field;    
try {
    String line;
    br = new BufferedReader(new FileReader(gameFilePath));
    while((line = br.readLine()) != null) { // Read the first line and assume it is the stored array
        field = line;
        System.out.println("-------------------------------------------------------------------");
        System.out.println(line);
    }
} catch(IOException e) {
    e.printStackTrace(); 
}

I've tried ObjectOutputStream and ObjectInputStream but these serialise the array data — Josh, Oct 12 '16 at 05:27
I've read the file's contents. I need to put the string representation of the array into an int[] array as I've said already — Josh, Oct 12 '16 at 05:29
Yes, after your edit that's clear. Please edit your post to show that code and explain clearly what problem(s) you're having. — ChiefTwoPencils, Oct 12 '16 at 05:33
Possible duplicate of [Converting String to Int in Java?](http://stackoverflow.com/questions/5585779/converting-string-to-int-in-java) — Josh, Oct 12 '16 at 06:34

score 2 · Accepted Answer · answered Oct 12 '16 at 05:42

So if your line is

[10, 22, 30, 55, 10, 20, 19]

then you can do

line = line.replace ("[", "");
line = line.replace ("]", "");

then you can use String.split

String vals [] = line.split (",");

then for each val you can use

intVal [x] = Integer.valueOf (val[x].trim ());

score -2 · Answer 2 · answered Oct 12 '16 at 05:32

What you're talking about doing is parsing the text. A simple way to implement this yourself for a beginner if you know the structure of the text is to hard code the rules for reading in a function and use Scanner.

I'm on my phone so I'll put details later but there's tons of info on how to do that if I'm not in time

Convert string representation of array back to int array in java

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