Converting CSV File Into 2D Array

Question

I have an example of my idea in a 1d array. It will only output the columns. My idea is to use a 2d array to select the row and column. Here my code:

String          


        

Answer 1

I would use a dynamic structure to read all lines. Also you should use a try-resource block to close the streams automatically.

public static String[][] readCSV(String path) throws FileNotFoundException, IOException {
    try (FileReader fr = new FileReader(path);
            BufferedReader br = new BufferedReader(fr)) {
        Collection lines = new ArrayList<>();
        for (String line = br.readLine(); line != null; line = br.readLine()) {
            lines.add(line.split(";"));
        }
        return lines.toArray(new String[lines.size()][]);
    }
}