What's the access modifier of the default constructor in java?

Question

We all know that if we don\'t specifically define a constructor, the compiler inserts an invisible zero-parameter constructor. I thought its access modifier was public, but

Answer 1

In addition to what Jon pretty well stated, here is an image example, for the visual guys.

If there is no constructor in a class, compiler automatically creates a default constructor.

Here is an example that successfully depicts the above rule:

For further reference, please refer here.