<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[chenchw的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/chenchw</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; chenchw]]></copyright><item><title><![CDATA[9. 回文数 121 121]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/128259528</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/128259528</guid><author>chenchw</author><pubDate>Fri, 09 Dec 2022 21:44:41 +0800</pubDate><description><![CDATA[给你一个整数 x ，如果 x 是一个回文整数，返回 true；否则，返回 false。回文数是指正序（从左向右）和倒序（从右向左）读都是一样的整数。例如，121 是回文，而 123 不是。]]></description><category></category></item><item><title><![CDATA[TreeSet 的两种排序方式 Comparable Comparator]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/128244206</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/128244206</guid><author>chenchw</author><pubDate>Fri, 09 Dec 2022 18:46:41 +0800</pubDate><description><![CDATA[Student 类结果：按照年龄排序。]]></description><category></category></item><item><title><![CDATA[时间复杂度和空间复杂度]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/128130240</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/128130240</guid><author>chenchw</author><pubDate>Thu, 01 Dec 2022 16:17:51 +0800</pubDate><description><![CDATA[常见的大O阶1、线性阶2、平方阶3、常数阶4、对数阶案例一：案例二：案例三：]]></description><category></category></item><item><title><![CDATA[黑马的ssm课程中class报错：Description : The fully qualified name of the bean‘s class, except if it serves onl]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/126970267</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/126970267</guid><author>chenchw</author><pubDate>Wed, 21 Sep 2022 12:24:23 +0800</pubDate><description><![CDATA[黑马的ssm课程中class报错。]]></description><category></category></item><item><title><![CDATA[mybatis 条件查询]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/124650159</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/124650159</guid><author>chenchw</author><pubDate>Sun, 08 May 2022 16:34:27 +0800</pubDate><description><![CDATA[package com.itheima.test;

import com.itheima.mapper.BrandMapper;
import com.itheima.pojo.Brand;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibat.]]></description><category></category></item><item><title><![CDATA[mybatis 快速入门]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/124585292</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/124585292</guid><author>chenchw</author><pubDate>Thu, 05 May 2022 11:28:44 +0800</pubDate><description><![CDATA[1.pom.xml


&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache]]></description><category></category></item><item><title><![CDATA[java获取当前目录]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/124552460</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/124552460</guid><author>chenchw</author><pubDate>Tue, 03 May 2022 11:15:25 +0800</pubDate><description><![CDATA[System.out.println(System.getProperty("user.dir"));
        //获取当前的目录的。当前目录到  哪一个级别。后面需要继续连接上的。





package javaWeb;

import jdk.nashorn.internal.ir.CallNode;

import java.sql.*;

public class Test {
    public static void main(String[] args) throws Ex...]]></description><category></category></item><item><title><![CDATA[leetCode 回文串]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/124044821</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/124044821</guid><author>chenchw</author><pubDate>Fri, 08 Apr 2022 16:44:16 +0800</pubDate><description><![CDATA[class Solution {
    public boolean isPalindrome(int x) {
         int res = 0;//将转换成的结果初试化为res；这道题其实和取余有点像
        if(x &lt; 0)
            return false;//是负数的时候直接返回false；

        if(x&gt;0){
             int x1=x;//可以不要这个
            int temp = 0;
    .]]></description><category></category></item><item><title><![CDATA[散列表，尚硅谷]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123878328</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123878328</guid><author>chenchw</author><pubDate>Thu, 31 Mar 2022 17:16:33 +0800</pubDate><description><![CDATA[import java.util.Scanner;

public class HashTable {
    public static void main(String[] args) {
        HashTab hashTab = new HashTab(7);
        //写一个菜单2

        String key = "";
        Scanner scanner = new Scanner(System.in);
        while (true) {
.]]></description><category></category></item><item><title><![CDATA[环形数组11]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123732250</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123732250</guid><author>chenchw</author><pubDate>Fri, 25 Mar 2022 12:03:42 +0800</pubDate><description><![CDATA[public class CircleArrayQueue {
    private int maxSize;
    private int front;
    private int rear;
    private int[] arr;

    //创建队列的构造器
    public CircleArrayQueue(int maxSize) {
        this.maxSize = maxSize;
        arr = new int[maxSize];
       .]]></description><category></category></item><item><title><![CDATA[数据结构---]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123720533</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123720533</guid><author>chenchw</author><pubDate>Thu, 24 Mar 2022 20:23:55 +0800</pubDate><description><![CDATA[public class AparseArr {
    public static void main(String[] args) {
        //创建一个二位数组
        int charArr[][] = new int[11][11];
        charArr[1][2] = 1;
        charArr[2][3] = 2;
        System.out.println("原始的二维数组");
        for (int[] row : charA.]]></description><category></category></item><item><title><![CDATA[一串字符的重量]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123688561</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123688561</guid><author>chenchw</author><pubDate>Wed, 23 Mar 2022 15:59:42 +0800</pubDate><description><![CDATA[package com.web;

import java.text.DecimalFormat;
import java.util.Scanner;

public class test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入字符串");
        String  str = sca.]]></description><category></category></item><item><title><![CDATA[学习json]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123639452</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123639452</guid><author>chenchw</author><pubDate>Mon, 21 Mar 2022 17:28:06 +0800</pubDate><description><![CDATA[&lt;!DOCTYPE html&gt;
&lt;html&gt;
	&lt;head&gt;
		&lt;meta charset="utf-8"&gt;
		&lt;title&gt;&lt;/title&gt;
	&lt;/head&gt;
	&lt;body&gt;
		&lt;script type="text/javascript"&gt;
			/**
			 * 1、什么是json，
			 * JavaScript  Object Notation (js标记对象)，是一种轻量级的数据.]]></description><category></category></item><item><title><![CDATA[http协议 tomcat servlet javaee架构]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123585556</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123585556</guid><author>chenchw</author><pubDate>Sun, 20 Mar 2022 21:47:47 +0800</pubDate><description><![CDATA[iii.常用请求头的说明


Accept:表示客户端可以接收的数据类型
Accpet-Languege:表示客户端可以接收的语言类型User-Agent:表示客户端浏览器的信息
Host:表示请求时的服务器ip和端口号l

GET请求有哪些:


1、form标签method=get  2、a标签
3、link标签引入css  4、Script标签引入s文件

5、img 标签引入图片  6、iframe引入 html 页面
...]]></description><category></category></item><item><title><![CDATA[c3p0 Druid]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/121196962</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/121196962</guid><author>chenchw</author><pubDate>Fri, 11 Mar 2022 22:02:07 +0800</pubDate><description><![CDATA[package datasource;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.junit.Test;

import java.beans.PropertyVetoException;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Conne.]]></description><category></category></item><item><title><![CDATA[快慢指针java]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/121320418</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/121320418</guid><author>chenchw</author><pubDate>Fri, 11 Mar 2022 22:01:43 +0800</pubDate><description><![CDATA[1、中间值的问题，

定义两个指针，fast slow ，最开始的时候都指向头节点。

当块指针指向为空的时候，就可以结束了。慢指针指向的节点就是中间值。



2、链表有环的问题

定义两个指针，fast slow ，最开始的时候都指向头节点。快指针的速度是慢指针速度的两倍。当出现快指针指向同一个元素（节点）的时候，就说明这个时候的链表是有环的。



3、有环量链表的入口问题。

    当快慢指针相遇的时候，我们可以判断链表中是有环的，这个时候重...]]></description><category></category></item><item><title><![CDATA[学习Ajax]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123397775</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123397775</guid><author>chenchw</author><pubDate>Fri, 11 Mar 2022 20:22:58 +0800</pubDate><description><![CDATA[2、异步请求对象（位于内存中的一个对象）

在局部刷新中，使用异步请求对象，在浏览器的内部发起请求，获取数据。





异步对象是在浏览器内部的一种javascript对象，各大浏览器都能支持异步对象的使用。

3、异步对象 xmlHttpRequest

js中的一种对象，使用js语法和使用这个对象

var xhr = new xmlHttpRequest();

之后就可以使用xhr对象的属性或者函数，进行异步对象的操作。


使用异步对象实现局部剧新，异步对象主要负责发起请求，...]]></description><category></category></item><item><title><![CDATA[Spring]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/122668301</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/122668301</guid><author>chenchw</author><pubDate>Mon, 28 Feb 2022 20:05:16 +0800</pubDate><description><![CDATA[Spring的重点API：










]]></description><category></category></item><item><title><![CDATA[复习css]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/123092781</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/123092781</guid><author>chenchw</author><pubDate>Wed, 23 Feb 2022 16:13:34 +0800</pubDate><description><![CDATA[#div1{
	background: #FF0000;
	width: auto;
	height: 6.25rem;
}
/*标签选择器 */
input{
	border: #FF0000;
}



&lt;!DOCTYPE html&gt;
&lt;html&gt;
	&lt;head&gt;
		&lt;meta charset="utf-8"&gt;
		&lt;title&gt;HTML中嵌入css演示的第一种方式：内联定义&lt;/title&gt;
	&lt;/head&gt;
	&l.]]></description><category></category></item><item><title><![CDATA[spring04]]></title><link>https://blog.youkuaiyun.com/chenchw/article/details/122709683</link><guid>https://blog.youkuaiyun.com/chenchw/article/details/122709683</guid><author>chenchw</author><pubDate>Wed, 23 Feb 2022 16:07:30 +0800</pubDate><description><![CDATA[]]></description><category></category></item></channel></rss>