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Java Example - Add elements to the beginning and end of a linked list (LinkedList)

黄舟
黄舟Original
2017-01-22 15:23:451861browse

The following example demonstrates how to use the addFirst() and addLast() methods of the LinkedList class to add elements at the beginning and end of the linked list:

/*
 author by w3cschool.cc
 Main.java
 */import java.util.LinkedList;public class Main {
   public static void main(String[] args) {
      LinkedList lList = new LinkedList();
      lList.add("1");
      lList.add("2");
      lList.add("3");
      lList.add("4");
      lList.add("5");
      System.out.println(lList);
      lList.addFirst("0");
      System.out.println(lList);
      lList.addLast("6");
      System.out.println(lList);
   }}

The output result of running the above code is:

1, 2, 3, 4, 5
0, 1, 2, 3, 4, 5
0, 1, 2, 3, 4, 5, 6

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