import java.util.*;
 
class Demo {
    static public void main(String[] args) {
        String[] lines = {
            "1,2,3,4,5,6",
            "1,2,3,4,5,6,7,8,9,0"
        };
        ArrayList<String[]> dataArr = new ArrayList<>();
 
        for (String line : lines) {
            dataArr.add(Arrays.copyOf(line.split(",", 9), 9));
        }
 
        for (int i = 0; i < dataArr.size(); i++) {
            for (int x = 0; x < dataArr.get(i).length; x++) {
                System.out.format("dataArr[%d][%d]: %s%n", i, x, dataArr.get(i)[x]);
            }
            System.out.println();
        }
    }
}
 

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