What happens if you do not provide a constructor?

Java does not actually require an explicit constructor in

the class description. If you do not include a constructor, the Java compiler will create a default constructor in the

byte code with an empty argument. This default constructor is equivalent to the explicit “Pet(){}”. If a class includes

one or more explicit constructors like “public Pet(int id)” or “Pet(){}” etc, the java compiler does not create the

default constructor “Pet(){}”.