Will the base class constructor be automatically called?

Question

class Person
{
    public int age;
    public Person()
    {
        age = 1;
    }
}

class Customer : Person
{
    public Customer()
    {
        age += 1;
    }
         


        

Answer 1

If you did not have a default parameterless constructor then there would be a need to call the one with parameters:

class Person
{
    public Person(string random)
    {

    }
}

class Customer : Person
{
    public Customer(string random) : base (random)
    {

    }
}