public class TestCache {
    public static void main(String[] args) {
        Cache<String, Integer> cache = new Cache<>();

        cache.put("张三", 85);
        cache.put("李四", 90);
        cache.put("王五", 78);

        System.out.println("张三的分数：" + cache.get("张三"));
        System.out.println("李四的分数：" + cache.get("李四"));

        cache.remove("王五");
        System.out.println("王五的分数：" + cache.get("王五"));


        System.out.println("是否包含张三：" + cache.containsKey("张三"));
        System.out.println("缓存大小：" + cache.size());

        cache.clear();
        System.out.println("清空后大小：" + cache.size());  
    }
}