LinkedList的使用

public void addFirst(Object e) 

public void addLast(Object e)

public Object getFirst() 

public Obejct getLast()

public Object removeFirst() 

public Object removeLast()

public class LinkedListDemo {
  public static void main(String[] args) {
    // 创建集合对象
    LinkedList link = new LinkedList();

    // 添加元素
    link.add("hello");
    link.add("world");
    link.add("java");

    // public void addFirst(Object e)
    // link.addFirst("javaee");
    // public void addLast(Object e)
    // link.addLast("android");

    // public Object getFirst()
    // System.out.println("getFirst:" + link.getFirst());
    // public Obejct getLast()
    // System.out.println("getLast:" + link.getLast());

    // public Object removeFirst()
    System.out.println("removeFirst:" + link.removeFirst());
    // public Object removeLast()
    System.out.println("removeLast:" + link.removeLast());

    // 输出对象名
    System.out.println("link:" + link);
  }
}