write a program that make a default constructor (Java) (206)

package com.company;
class constructors
{
    private int id;
    private int age;
    public constructors() //default constructor
    {
        id=4718;
        age=18;
    }
    public void set ()
    {
        System.out.println("your age is: "+age);
        System.out.println("your roll no is: "+id);
    }
}
public class Program43 {
    public static void main(String[] args) {
        constructors obj=new constructors();
        obj.set();

    }
}