class A1()

class A2 private ()
class A3 private [ann] protected ()
class A4 private [ann1] protected [ann2] () {

}

class A5 private [ann]

()

class A6     /* faddf */ private ()

class A7
private
[ann]
()

class A8     // eol comment
private
[ann]
()

class A9 // eol comment
private // eol comment
[ann] // eol comment
()

class A10
protected @ann constructor()

class A11
protected
@ann
constructor
()