"1,2;3,4,5;6,7,8,9" 转换成[1,2][3,4,5][6,7,8,9]

//"1,2;3,4,5;6,7,8,9"  转换成[1,2][3,4,5][6,7,8,9]

public class Test {
    public static void main(String[] args) {
        String s = "1,2;3,4,5;6,7,8,9";
        String[] sub = s.split(";");
        int[][] a = new int[sub.length][];

        for(int i=0;i<sub.length;i++) {
            String[] sr = sub[i].split(",");
            a[i] = new int[sr.length];

            for(int j=0;j<sr.length;j++) {
                a[i][j]=Integer.parseInt(sr[j]);
            }
        }

        for(int i=0;i<a.length;i++) {
            for(int j=0;j<a[i].length;j++) {
                System.out.print(a[i][j]+"  ");
            }
        System.out.println();
        }
    }
}