How to make an object that has a another object as a parameter in JAVA

Question

So I have 2 constructors

one for the object MyDate:

public MyDate(int month, int day, int year) {
    this.month = month;
    this.day = day;
    this.year = year;

and one for the object Person:

public Person(String name, MyDate dob) {
    this.name = name;
    this.dob = dob;

so how do I make a new Person object in my main method?

Person p1 = new Person(?????);