Java 中 AbstractSequentialList 的 contains() 方法
Java 中 AbstractSequentialList 的 contains() 方法用于检查集合中是否存在某个元素。
语法如下
public boolean contains(Object ob)
在此,ob 是要检查的元素。若要在 Java 中使用 AbstractSequentialList 类,需要导入以下包
import java.util.AbstractSequentialList;
以下是一个在 Java 中实现 AbstractSequentialList contains() 方法的示例
示例
import java.util.LinkedList; import java.util.AbstractSequentialList; public class Demo { public static void main(String[] args) { AbstractSequentialList<Integer> absSequential = new LinkedList<>(); absSequential.add(250); absSequential.add(320); absSequential.add(400); absSequential.add(550); absSequential.add(600); absSequential.add(700); absSequential.add(900); System.out.println("Elements in the AbstractSequentialList = "+absSequential); System.out.println("Does the element exist? = " + absSequential.contains(400)); } }
输出
Elements in the AbstractSequentialList = [250, 320, 400, 550, 600, 700, 900] Does the element exist? = true
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