如何使用 Java 对象缓存来优化函数的内存使用？

import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine;

// 创建一个简单的对象缓存，使用最多 100 个条目
Cache<Integer, String> cache = Caffeine.newBuilder()
    .maximumSize(100)
    .build();

// Put an object in the cache
cache.put(1, "Object 1");

// Get an object from the cache
String object1 = cache.getIfPresent(1);

import java.util.UUID;

public class StringCacheExample {

    private static final Cache<String, String> CACHE = Caffeine.newBuilder()
        .maximumSize(100)
        .build();

    public static void main(String[] args) {
        for (int i = 0; i < 1000; i++) {
            String uuid = UUID.randomUUID().toString();

            // Use the cache to retrieve the object
            String cachedUuid = CACHE.getIfPresent(uuid);

            // If the object is not in the cache, create it and put it in the cache
            if (cachedUuid == null) {
                cachedUuid = uuid;
                CACHE.put(uuid, cachedUuid);
            }

            // Use the cached object
            System.out.println(cachedUuid);
        }
    }
}