package com.caohuayu.javademo;

    public interface I9<T> {
        void m9(T p);
    }

    public static void main(String[] args) {
        C9<Integer> c9a = new C9<Integer>();
        c9a.m9(99);
        //
        C9<String> c9b = new C9<String>();
        c9b.m9("hello");
    }