public class Main {

    public static void main(String[] args) {
        Object[] arr1 = new Object[10000000];

        Object[] arr = arr1;

        for (int i = 0; i < 200; i++) {
            arr[0] = new Object[10000000]; // try 30000000
            arr = (Object[]) arr[0];
            System.out.printf("i is %d\n", i);
        }
    }
}



public class Main {

    private static int factorial(int n) {
        if (n == 1)
            return 1;
        else
            return n * factorial(n + 1); // return n*factorial(n-1);
    }

    public static void main(String[] args) {
        int f = factorial(4);
        System.out.println(f);
    }
}