java编程思想第四版习题_10.21

interface InterFace1 {    void g();    public class InnerClass1 {        public static void f(InterFace1 a) {            a.g();        }    }}public class InnerClassTest implements InterFace1 {    public void g() {        System.out.println("g()");    }    public static void main(String[] args) {        InnerClassTest a = new InnerClassTest();        InnerClass1.f(a);    }}

输出：g()