使用Java中的LinkedList类创建队列
要使用LinkedList类创建队列，请尝试以下操作-
Queue<String> q = new LinkedList<String>();
q.offer("abc");
q.offer("def");
q.offer("ghi");
q.offer("jkl");
q.offer("mno");
q.offer("pqr");
q.offer("stu");
q.offer("vwx");之后打印元素，您需要使用检查队列的条件，如下所示-
Object ob;
while ((ob = q.poll()) != null) {
System.out.println(ob);
}以下是一个例子-
示例
import java.util.LinkedList;
import java.util.Queue;
public class Demo {
public static void main(String[] args) {
Queue<String> q = new LinkedList<String>();
q.offer("abc");
q.offer("def");
q.offer("ghi");
q.offer("jkl");
q.offer("mno");
q.offer("pqr");
q.offer("stu");
q.offer("vwx");
System.out.println("Queue head = " + q.element());
System.out.println("Size = " + q.size());
System.out.println("\nQueue elements...");
Object ob;
while ((ob = q.poll()) != null) {
System.out.println(ob);
}
}
}输出结果
Queue head = abc Size = 8 Queue elements... abc def ghi jkl mno pqr stu vwx