Java Examples - Get the first and last elements of a linked list (LinkedList)
Java ExamplesThe following example demonstrates how to use the linkedlistname.getFirst() and linkedlistname.getLast() methods of the LinkedList class to get the first and last elements of a linked list:
Main.java file
import java.util.LinkedList;
public class Main {
public static void main(String[] args) {
LinkedList<String> lList = new LinkedList<String>();
lList.add("100");
lList.add("200");
lList.add("300");
lList.add("400");
lList.add("500");
System.out.println("The first element of the linked list is:" + lList.getFirst());
System.out.println("The last element of the linked list is:" + lList.getLast());
}
}
The output of running the above code is:
链表的第一个元素是：100 链表的最后一个元素是：500Other extensions