double [][] d = new double[3][];
d[0] = new double[]{2.10000, 2.20000};
d[1] = new double[]{1.05000, 3.52555, 2.58845};
d[2] = new double[]{1.25555};
for (int i=0; i<d.length; i++) {
    for (int j=d[i].length; j++) {
        System.out.printf("%.5f ", d[i][j]);
    }
    System.out.println();
}