检查HashTable值中包含的字符串

Question

1=[Fletcher Christian, No, Visualisation of Egocentric Networks, Exploring the Irish Political Landscape on Twitter, Twitter Network Analysis, A Web-Based Server Energy Model Generator, Recommending Movies Using Curated IMDb Lists, Travel Planner for Commuters, Analysis of urban street networks - constructing a dual representation, Biography Reading Media Assistant]

我的hash-table和上面一样。我想知道Fletcher Christian是否包含在Hash-Table值中

这里的值是一个向量。

Answer 1

只需检查所有值并检查：

static boolean contains (Hashtable <Integer, Vector <String>> map, String value){
    for (Vector<String> values : map.values()){
        if (values.contains(value))
            return true;
    }
    return false;
}

在Java 8中，您可以用一行来完成它：

static boolean contains (Hashtable <Integer, Vector<String>> map, String value){
    return map.values().stream().anyMatch(list -> list.contains(value));
}