Java - 自定义链接列表问题

Question

我已经创建了自己的自定义链接列表（代码如下）。现在，我无法理解如何创建像LinkedList[] l = new LinkedList[10]这样的链接列表的数组。谁能帮我。

class Node { 
     public int data; 
     public Node pointer; 
} 

class LinkedList { 
     Node first; 
     int count = 0; 

     public void addToEnd(int data){ 
      if(first == null){ 
        Node node = new Node(); 
        node.data = data; 
        node.pointer = null; 
        first = node; 
        count = 1; 
        return; 
      } 
      Node next = first; 
      while(next.pointer != null){ 
        next = (Node)next.pointer; 
      } 
      Node newNode = new Node(); 
      newNode.data = data; 
      newNode.pointer = null; 
      next.pointer = newNode; 
      count++; 
     } 

     public Node getFirst(){ 
      return first; 
     } 
     public Node getLast(){ 
      Node next = first; 
      while(next.pointer != null) 
        next = next.pointer; 
      return next; 
     } 


     public int[] get(){ 
     if(count != 0){ 
      int arr[] = new int [count] ; 
      Node next = first; 
      int i = 0; 
        arr[0]= next.data; 
      while(next.pointer != null){ 
        next = next.pointer; 
        i++; 
        arr[i] = next.data; 
      } 
      i++; 
      return arr ; 
      } 
      return null ; 
     } 
     public int count(){ 
      return count; 
     } 
} 

Answer 1

我要去猜测，你的问题就是，当你创建对象的数组，像

LinkedList[] lists = new LinkedList[10]; 

你会得到一个数组充满null秒;您需要创建对象以存储在阵列中：

for (int i=0; i<lists.length; ++i) 
    lists[i] = new LinkedList();