Will the compiler-generated default constructor be public?

Question

When I write a class Widget.java

public class Widget {
    int data;
    String name;
}

will the compiler-generated constructo

Answer 1

It will be public Widget() {}

Answer 2

As classes visibility is public, it will always be a public constructor.

Answer 3

As said in JLS

If a class contains no constructor declarations, then a default constructor that takes no parameters is automatically provided:

1. If the class is declared public, then the default constructor is implicitly given the access modifier public;
2. If the class is declared protected, then the default constructor is implicitly given the access modifier protected;
3. If the class is declared private, then the default constructor is implicitly given the access modifier private;
4. Otherwise, the default constructor has the default access implied by no access modifier

Answer 4

It depends on your class visibility.The compiler uses the class visibility and generates a no-arg default constructor with the same visibility

Answer 5

It will be public as the class visibility is public

public Widget() {}

Answer 6

If your class is public then the default constructor would be public so in your case, Since the Widget class is public its default constructor supplied by the compiler would also be public. See this