List集合用Steam流获取其中的布尔值字段
时间: 2024-04-08 12:28:57
浏览: 132
要使用Stream流获取List[集合](https://geek.csdn.net/educolumn/ba94496e6cfa8630df5d047358ad9719?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)中的布尔值字段,您可以按照以下步骤操作:
1. 导入必要的类和方法:
```java
import java.util.List;
import java.util.stream.Collectors;
2. 创建一个List[集合](https://geek.csdn.net/educolumn/ba94496e6cfa8630df5d047358ad9719?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083),并填充布尔值字段:
```java
List<YourObject> list = new ArrayList<>();
list.add(new YourObject(true));
list.add(new YourObject(false));
list.add(new YourObject(true));
3. 使用Stream流过滤出布尔值为true的元素,并将结果收集到一个新的List[集合](https://geek.csdn.net/educolumn/ba94496e6cfa8630df5d047358ad9719?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)中:
```java
List<YourObject> filteredList = list.stream()
.filter(YourObject::isYourBooleanField)
.collect(Collectors.toList());
在上述[代码](https://geek.csdn.net/educolumn/1572ef9b473b4e00f6b2bf6d428b7c27?spm=1055.2569.3001.10083)中,您需要将`YourObject`替换为实际的[对象](https://geek.csdn.net/educolumn/04c51611e4b730957464192e0307b82c?spm=1055.2569.3001.10083)类型,并将`isYourBooleanField`替换为实际的布尔值字段的访问方法。
现在,`filteredList`将只包含布尔值字段为true的元素。
相关问题
list集合通过stream流获取一个字段的集合
可以使用 Java 8 的 Stream API 来获取一个 List 集合中某
java stream流 获取list中某个字段最大值
相关推荐















