public class Person {

    int num;

}

class Man {

    Person[] p; // creating an array of Person

    public Man(int size) {
        p = new Person[size]; // allocating memory the right size for the array

        for (int i = 0; i < size; i ++) {
            p[i] = new Person(); // making all the Person's in the array
            p[i].num = i;
        }
    }

    public static void main(String[] args) {

        Man man = new Man(5);

    }

}