How can I convert a text file into a list of int arrays

Question

I have a text file containing the following content:

0 0 1 0 3 
0 0 1 1 3 
0 0 1 2 3 
0 0 3 0 1 
0 0 0 1 2 1 1 
0 0 1 0 3 
0 0 1 1 3 
0 0 1 2 3 
0 0 3 0 1 
0         


        

Answer 1

using System.IO;
using System.Linq;

string filePath = @"D:\Path\To\The\File.txt";
List listOfArrays =
    File.ReadLines(path)
    .Select(line => line.Split(' ').Select(s => int.Parse(s)).ToArray())
    .ToList();

Since you mention that it is your first time programming in C#, this version may be easier to understand; the process is the same as the above:

using System.IO;
using System.Linq;

string filePath = @"D:\Path\To\The\File.txt";

IEnumerable linesFromFile = File.ReadLines(path);

Func convertStringToIntArray =
    line => {
        var stringArray = line.Split(' ');
        var intSequence = stringArray.Select(s => int.Parse(s)); // or ....Select(Convert.ToInt32);
        var intArray = intSequance.ToArray();
        return intArray;
    };

IEnumerable sequenceOfIntArrays = linesFromFile.Select(convertStringToIntArray);

List listOfInfArrays = sequenceOfIntArrays.ToList();