Get array dimensions

import java.lang.reflect.Array;

public class Main {
  public static void main(String[] argv) throws Exception {
    Object o = new int[1][2][3];
    int len = Array.getLength(o); // 1
    System.out.println(len);
    int dim = getDim(o); // 3
    System.out.println(dim);
  }

  public static int getDim(Object array) {
    int dim = 0;
    Class cls = array.getClass();
    while (cls.isArray()) {
      dim++;
      cls = cls.getComponentType();
    }
    return dim;
  }
}