How do you identify a default constructor?

Question

I am new to OOP.

I have read that "the constructor which takes no arguments is called the default constructor".

Is the below constructor a default constructor?

Class A
{
  int a;
  string b;

  public A()
  {
    a=10;
    b="Test";
  }
}

Answer 1

Yes, it is, since it doesn't have any parameters/arguments.

An example of a non-default constructor would be:

public A(int a)
{
   this.a = a;
}