模板类和模板方法的使用

public  class Coffee {
    static class Box<T>{
        private T contents;
        public Box(T contents){
            this.contents=contents;
        }
        public T getContents(){
            return contents;
        }
        public void setContents(T contents){
            this.contents=contents;
        }
    }
    public static void main(String[] args) {
        //模板类
        Box<String> StringBox=new Box<String>("hello");
        System.out.println(StringBox.getContents());
        Box IntergerBox=new Box<Integer>(5);
        System.out.println(IntergerBox.getContents());
        System.out.println("---------------------");
        //模板方法
        TemplateMethod("123");
        TemplateMethod(6);
        TemplateMethod(8.8);
    }
    public static <K> void TemplateMethod(K k){
        System.out.println(k);
    }
}