Java LinkedList removeAll() 方法
示例
从列表中删除所有项目
import java.util.LinkedList;
public class Main {
public static void main(String[] args) {
LinkedList<String> cars = new LinkedList<String>();
cars.add("Volvo");
cars.add("BMW");
cars.add("Ford");
cars.add("Mazda");
cars.add("Toyota");
cars.removeAll(cars);
System.out.println(cars);
}
}定义和用法
The removeAll() method removes all items from a list which belong to a specified collection.
语法
public boolean removeAll(Collection items)参数值
| 参数 | 描述 |
|---|---|
| items | Required. A collection containing items to be removed from the list. |
技术细节
| 返回值 | true if the list changed and false otherwise. |
|---|---|
| 抛出异常 |
NullPointerException - If the collection is null. |
更多示例
示例
从列表中删除多个项目
import java.util.LinkedList;
public class Main {
public static void main(String[] args) {
LinkedList<String> cars = new LinkedList<String>();
cars.add("Volvo");
cars.add("BMW");
cars.add("Ford");
cars.add("Mazda");
cars.add("Toyota");
LinkedList<String> remove = new LinkedList<String>();
remove.add("Volvo");
remove.add("Ford");
remove.add("Mazda");
cars.removeAll(remove);
System.out.println(cars);
}
}
相关页面
❮ LinkedList 方法
