3. 线性表 - java单链表实现方式

package com.java.datastructure.lineartable;
// 线性表 - java单链表实现方式
public class SingLinkList {
    private Node head;

    public SingLinkList() {
        head = new Node();
        head.next = null;
    }

    public void addNode(String data) {
        Node p = head;
        //当前只存在多个元素
        while (p.next!=null) {
            p = p.next;
        }
        p.next = new Node(data);
    }

    public void delNode(String data) {
        Node p = head;
        if(p.next==null) {
            return ;
        }
        while (p.next!=null) {
            if(p.next.getName().equals(data)) {
                p.next = p.next.next;
                break;
            } else {
                p = p.next;
            }
        }
    }

    public void display(String begContetn) {
        Node p = head;
        while(p.next!=null) {
            System.out.println(begContetn+" Node name :"+p.next.getName());
            p = p.next;
        }
    }

    public String findNode(String data) {
        Node p = head;
        while (p.next!=null) {
            if(p.next.getName().equals(data)) {
                return data;
            } else {
                p = p.next;
            }
        }
        return  null;
    }

    public void insertBeforeNode(String befNode, String data) {
        Node p = head;
        while(p.next!=null) {
            if(p.next.getName().equals(befNode)) {
                Node temp = p.next;
                Node inserData = new Node(data);
                inserData.next = temp.next;
                temp.next = inserData;
                break;
            } else {
                p = p.next;
            }
        }

    }

    static class  Node {
        private String name;
        private Node next;

        public Node() {

        }

        public Node(String name) {
            this.name = name;
            next = null;
            System.out.println("生产节点：" + name);
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public Node getNext() {
            return next;
        }

        public void setNext(Node next) {
            this.next = next;
        }
    }

    public  static void main (String[] args) {
        SingLinkList list = new SingLinkList();
        list.addNode("hcb1");
        list.addNode("hcb2");
        list.addNode("hcb3");

        list.display("show all");

        list.insertBeforeNode("hcb2","hcb2-bef");
        list.display("show insert");

        list.delNode("hcb2");
        list.display("show del");
    }
}