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

Answer 1

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

Answer 2

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 ());