下面是小編給大家分享的一個使用java寫單鍊錶,有問題歡迎給我留言哦。
先定義一個Node類
public class Node { protected Node next; //指针域 public int data;//数据域 public Node( int data) { this. data = data; } //显示此节点 public void display() { System. out.print( data + " "); } }
接下來定義單鍊錶,並實現相關方法:
public class LinkList { public Node first; // 定义一个头结点 private int pos = 0;// 节点的位置 public LinkList() { this.first = null; } // 插入一个头节点 public void addFirstNode(int data) { Node node = new Node(data); node.next = first; first = node; } // 删除一个头结点,并返回头结点 public Node deleteFirstNode() { Node tempNode = first; first = tempNode.next; return tempNode; } // 在任意位置插入节点 在index的后面插入 public void add(int index, int data) { Node node = new Node(data); Node current = first; Node previous = first; while (pos != index) { previous = current; current = current.next; pos++; } node.next = current; previous.next = node; pos = 0; } // 删除任意位置的节点 public Node deleteByPos(int index) { Node current = first; Node previous = first; while (pos != index) { pos++; previous = current; current = current.next; } if (current == first) { first = first.next; } else { pos = 0; previous.next = current.next; } return current; } // 根据节点的data删除节点(仅仅删除第一个) public Node deleteByData(int data) { Node current = first; Node previous = first; // 记住上一个节点 while (current.data != data) { if (current.next == null) { return null; } previous = current; current = current.next; } if (current == first) { first = first.next; } else { previous.next = current.next; } return current; } // 显示出所有的节点信息 public void displayAllNodes() { Node current = first; while (current != null) { current.display(); current = current.next; } System.out.println(); } // 根据位置查找节点信息 public Node findByPos(int index) { Node current = first; if (pos != index) { current = current.next; pos++; } return current; } // 根据数据查找节点信息 public Node findByData(int data) { Node current = first; while (current.data != data) { if (current.next == null) return null; current = current.next; } return current; } }
至此,對單鍊錶的操作就筆記到這裡了。
以上所述是小編給大家介紹的Java單鍊錶的實作程式碼,希望對大家有幫助,如果大家有任何疑問請給我留言,小編會及時回覆大家的。在此也非常感謝大家對PHP中文網的支持!
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