contains(it.next())) { it.remove(); modified = true; } } return modified; } /** * 求出当前集合和参数 c 代表的集合中元素的交集, * 通过迭代器遍历当前集合元素,判断每一个元素是否存在于集合 c 中, * 如果不存在,那么移除这个元素,如果参数 c 为 null, * 抛出 NullPointException 异常 */ ...
funmain(){// 创建可变列表集合val mutableList=mutableListOf("Tom","Jerry")// 通过 Lambda 表达式筛选要操作的元素// 删除包含 字母 T 的元素mutableList.removeIf{it.contains("T")}println(mutableList)} 执行结果 : 代码语言:javascript 代码运行次数:0 运行 AI代码解释 [Jerry] 六、List 集合遍历 List ...
Configuration conf = Configuration.builder().options(Option.AS_PATH_LIST).build(); List<String> pathList = using(conf).parse(json).read("$..author"); assertThat(pathList).containsExactly( "$['store']['book'][0]['author']", "$['store']['book'][1]['author']", "$['store']['...
.filter(list2::contains) .collect(Collectors.toList()); 1. 2. 3. 差集 //(list1 - list2) List<String> reduce1 = list1.stream().filter(item -> !list2.contains(item)).collect(toList()); //(list2 - list1) List<String> reduce2 = list2.stream().filter(item -> !list1.contai...
In [5]: # 添加～指定位置插入 infos_list.insert(0,"Python") print(infos_list) # 列表嵌套(后面会有扩展) temp_list=["test1","test2"] infos_list.insert(0,temp_list) print(infos_list) ['Python', 'C#', 'JavaScript', 'Java'] [['test1', 'test2'], 'Python', 'C#', 'JavaScript...
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SumSummarizes numbers in list by delegate.Delegate AnyReturns true if list contains any item. AnyReturns true if list contains any item by delegate.Delegate EqualsCompares list with another list. Returns true if lists are equal. If comparePosition is set to false, equality will be checked withou...
In general the whole process is quite cheap. However, the process of allocating memory for an object of a reference type is not always that easy and can involve additional heavy parts. If the reference type is larger than 85K bytes, the runtime will spend more time looking for the appropr...
contains()Returns true if the list contains a class entries()Returns an Iterator with key/value pairs from the list forEach()Executes a callback function for each token in the list item()Returns the token at a specified index keys()Returns an Iterator with the keys in the list ...
Pass this parameter in the request body, as shown in the request example. HTTP method POST Response Type: GetListItemChangesSinceTokenResult A Stream that contains an XML representation of the changes to the list items that have happened after the specified change. Request example JavaScript Copy ...