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

This is my implemented code:

String fileName = "myfile.csv";
List> list = new ArrayList>();
BufferedReader br = new BufferedReader(new FileReader(fileName));
String line = br.readLine();
String[] headers = line.split(";");
for(String header: headers) {
    List subList = new ArrayList();
    subList.add(header);
    list.add(subList);
}
while((line = br.readLine()) != null) {
    String[] elems = line.split(";");
    for(int i = 0; i < elems.length; i++) {
        list.get(i).add(elems[i]);
    }
}
br.close();
int rows = list.size();
int cols = list.get(0).size();
String[][] array2D = new String[rows][cols];
for(int row = 0; row < rows; row++) {
    for(int col = 0; col < cols; col++) {
        array2D[row][col] = list.get(row).get(col);
    }
}

The array2D is your wants.