java数据结构与算法-有序链表

一、有序链表

/**
* Created by Xi on 2017/7/30.
* 有序链表
*/

public class LinkListOrderly {
private static final String TAG="LinkListOrderly";
private LinkFirstLast first;//单链表的第一个元素
public LinkListOrderly(){
first=null;
}

/**
* 插入元素
* @param dd
*/
public void insert(double dd){
LinkFirstLast newLind=new LinkFirstLast(dd);
LinkFirstLast previous=null;//前一个元素
LinkFirstLast current=first;
while(current!=null&&dd>current.dData){//当前元素小于要插入的元素，继续找
previous=current;
current=current.next;
}
if(previous==null) {
first = newLind;
}else {
previous.next = newLind;
}
newLind.next=current;
}

/**
* 判断链表是否为空
*/
public boolean isEmpty(){
return first==null;
}

/**
* 删除元素
* @return
*/
public LinkFirstLast remove(){
LinkFirstLast temp=first;
first=first.next;
return temp;
}

/**
* 展示链表
*/
public void displayList(){
Log.i(TAG,"List (first-->last):");
LinkFirstLast current=first;
while(current!=null){
current.displayLink();
current=current.next;
}
}

}

二、调用函数如下
/**
* 有序链表
*/
public void link_orderly(){
LinkListOrderly theLink=new LinkListOrderly();
theLink.insert(20);
theLink.insert(40);
theLink.displayList();
theLink.insert(30);
theLink.insert(60);
theLink.displayList();
theLink.remove();
theLink.displayList();
}


日志打印如下：
08-15 10:10:21.986 16378-16378/com.tool.wpn.quicksort I/LinkListOrderly: List (first-->last):

08-15 10:10:21.986 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 20.0

08-15 10:10:21.987 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 40.0

08-15 10:10:21.987 16378-16378/com.tool.wpn.quicksort I/LinkListOrderly: List (first-->last):

08-15 10:10:21.987 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 20.0

08-15 10:10:21.987 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 30.0

08-15 10:10:21.987 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 40.0

08-15 10:10:21.988 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 60.0

08-15 10:10:21.988 16378-16378/com.tool.wpn.quicksort I/LinkListOrderly: List (first-->last):

08-15 10:10:21.988 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 30.0

08-15 10:10:21.988 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 40.0

08-15 10:10:21.988 16378-16378/com.tool.wpn.quicksort I/LinkFirstLast: 60.0

源码下载地址：点击打开链接