Cannot `import static` static nested class?

Question

I have a class A with a static nested class inside it called B:

import static A.B.*;

class A {
    static class B {
        static         


        

Answer 1

This won't work if A is in the default package. However, you could add a package declaration:

package mypackage;

and use

import static mypackage.A.B.*;

The static import syntax from from the JLS is given:

SingleStaticImportDeclaration: import static TypeName . Identifier ;

where TypeName is required to be full qualified.

In Using Package Members the static import syntax is given with package name included:

import static mypackage.MyConstants.*;

It is recommended to use static imports very sparingly.

Answer 2

It should be

import <the-package-for-the-class-A>.A.B.*;

If A is in the default package, this will fail.

Last, it's not a good practice to import *. Just import only the things that you need, in this case - import static <the-package-for-the-class-A>.A.B.x; if you're gonna use only the x variable.