<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[m0_61759645的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/m0_61759645</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; m0_61759645]]></copyright><item><title><![CDATA[Linux指令初始]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/135005718</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/135005718</guid><author>m0_61759645</author><pubDate>Thu, 14 Dec 2023 23:03:10 +0800</pubDate><description><![CDATA[Linux基础指令]]></description><category></category></item><item><title><![CDATA[指针的进阶一]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/132592360</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/132592360</guid><author>m0_61759645</author><pubDate>Wed, 30 Aug 2023 23:21:33 +0800</pubDate><description><![CDATA[指针]]></description><category></category></item><item><title><![CDATA[浮点型在内存中的存储]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/132522037</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/132522037</guid><author>m0_61759645</author><pubDate>Sun, 27 Aug 2023 12:37:45 +0800</pubDate><description><![CDATA[浮点型存储]]></description><category></category></item><item><title><![CDATA[C语言顺序表操作]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/129768014</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/129768014</guid><author>m0_61759645</author><pubDate>Sat, 25 Mar 2023 16:08:19 +0800</pubDate><description><![CDATA[实现取顺序表中第i个结点算法（不包括0个）实现删除第i个结点算法。]]></description><category></category></item><item><title><![CDATA[MySQL最基本的SELECT(查询)语句]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125581598</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125581598</guid><author>m0_61759645</author><pubDate>Sun, 03 Jul 2022 10:44:30 +0800</pubDate><description><![CDATA[基本的SELECT语句]]></description><category></category></item><item><title><![CDATA[初识MySQL]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125580155</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125580155</guid><author>m0_61759645</author><pubDate>Sun, 03 Jul 2022 01:09:26 +0800</pubDate><description><![CDATA[MySQL的历史，特点，概述]]></description><category></category></item><item><title><![CDATA[IDEA常用的快捷键]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125340020</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125340020</guid><author>m0_61759645</author><pubDate>Fri, 17 Jun 2022 21:13:48 +0800</pubDate><description><![CDATA[IDEA快捷键]]></description><category></category></item><item><title><![CDATA[Java小项目——客户的关系管理系统]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125315427</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125315427</guid><author>m0_61759645</author><pubDate>Thu, 16 Jun 2022 14:31:02 +0800</pubDate><description><![CDATA[需求 :1.  必须提供用户的菜单(展示本系统的所有功能,用户选择)
2. 类描述客户的数据,属性 : 姓名,年龄,邮件
3. 客户数据,存储在集合,定义集合,存储客户对象
4. 初始化数据,程序启动,集合中存储一些数据
5. 添加客户数据 (录入信息), 重名的不能添加
6. 修改客户数据,判断是否存在用户, 检测姓名
7. 删除客户数据,判断是否存在用户, 检测姓名
8. 查询数据 : 集合遍历写三个类一个写主函数一个存变量一个写方法


 方法类


 主函数


 运行效果：...]]></description><category></category></item><item><title><![CDATA[字符串转成日期对象]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125020316</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125020316</guid><author>m0_61759645</author><pubDate>Sat, 28 May 2022 17:03:00 +0800</pubDate><description><![CDATA[字符串转成日期对象
 SimpleDateFormat调用方法Date parse(String str)



 /**
     * 字符串转成日期对象
     */
    public static void parse() throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        /**
         *  dateString用户输入的日期
  ...]]></description><category></category></item><item><title><![CDATA[字符串的相关编程题]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/125005316</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/125005316</guid><author>m0_61759645</author><pubDate>Fri, 27 May 2022 15:47:18 +0800</pubDate><description><![CDATA[字符串出现的次数

 字符串A,另一个字符串B,计算B字符串在A字符串中出现几次

 例子 : dsabdnabdsnabeabiwpabekabd **ab**

- 实现过程
 - 对字符串进行索引查找 indexOf
 - 找到的字符串的索引记录,进行字符串的截取
 - 直到找打到未知, indexOf方法是-1
 - 一旦找到了,计数器++



 /**
     * @param str  原始字符串
     * @param sub  要查找的字符串
     * @re...]]></description><category></category></item><item><title><![CDATA[Java冒泡排序 (bubble)]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124995919</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124995919</guid><author>m0_61759645</author><pubDate>Fri, 27 May 2022 00:51:47 +0800</pubDate><description><![CDATA[核心思想 : 元素之间比较换位. 冒泡排序的比较方式 : 相邻元素比较








/**
* 排序实现
*/
public static void bubbleSort(int[] arr){
    //外循环,次数固定的
    for (int i = 0 ; i &lt; arr.length ; i++){
    	//内循环,每次都要进行递减操作
    	for (int j = 0 ; j &lt; arr.length - i - 1; j++){ //j 0-6
    		..]]></description><category></category></item><item><title><![CDATA[Java选择排序优化和Java冒泡排序 (bubble)]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124995820</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124995820</guid><author>m0_61759645</author><pubDate>Fri, 27 May 2022 00:39:05 +0800</pubDate><description><![CDATA[优化 : 不是每次比较完成都要换位,获取到最值,用这个最值在换位值


/**
     * 选择排序的优化
     * 最值获取:
     *   利用元素
     *   用索引
     */
    public static void selectSort(int[] arr){
        //获取数组的最值
        for (int i = 1 ; i &lt; arr.length ;i++){
            //定义变量,保存数组的第一个元素
         ]]></description><category></category></item><item><title><![CDATA[Java编程题]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124995770</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124995770</guid><author>m0_61759645</author><pubDate>Fri, 27 May 2022 00:35:02 +0800</pubDate><description><![CDATA[要求 : 指定字符串 "asdfg3435erAAEExc" , 统计处,小写字母,大写字母,数字,各自出现了多少次,不考虑其它字符

统计的案例 : 计数器思想 变量++

实现思想 : **字符串换成数组,取出每个元素,分别统计** ASCII码熟悉


public static void stringCount(String str){
        if (str == null)
            return;
        //定义三个计数器变量
        int upp..]]></description><category></category></item><item><title><![CDATA[Java String类详解]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124976392</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124976392</guid><author>m0_61759645</author><pubDate>Thu, 26 May 2022 00:07:10 +0800</pubDate><description><![CDATA[String字符串类

字符串对象,程序中定义""都是字符串对象,这个对象的使用频率最高.

字符串类 java.lang.String类,继承Object类,实现了三个接口.

程序中只要你写 "里面任意" 都是String类的对象.

字符串对象是常量,一旦创建不能修改.

字符串对象创建


public static void main(String[] args) {
    //字符串创建,2个方式
    //直接=创建
    String s = "abc";
    //使用构造方法创建]]></description><category></category></item><item><title><![CDATA[java适合初学者做的小项目——家庭收支记账软件]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124813333</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124813333</guid><author>m0_61759645</author><pubDate>Tue, 17 May 2022 08:35:58 +0800</pubDate><description><![CDATA[Utility.java


import java.util.*;

public class Utility {
    private static Scanner scanner = new Scanner(System.in);
    
	public static char readMenuSelection() {
        char c;
        for (; ; ) {
            String str = readKeyBoard(1);
          ]]></description><category></category></item><item><title><![CDATA[java中彩票代码]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124786884</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124786884</guid><author>m0_61759645</author><pubDate>Sun, 15 May 2022 19:50:17 +0800</pubDate><description><![CDATA[import java.util.Scanner;

public class Test99 {
	
	public static void main(String[] args){
		
		Scanner scanner = new Scanner(System.in);
		
		// 1.使用Math.random()生成随机数
		double randomDouble = Math.random();
		
		// 2.将随机数乘以100，再舍弃小数部分从而得到两位整数形式的随机数作为中奖号.]]></description><category></category></item><item><title><![CDATA[java中不解的运算]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124768213</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124768213</guid><author>m0_61759645</author><pubDate>Sat, 14 May 2022 14:59:27 +0800</pubDate><description><![CDATA[int n = 10;
n+=(n++)+(++n);

// // 按照基本语法推测
  // // 第一步：取n的值，用来做加法   [10 + ?]
  // // 第二步：++n先加再取值，n变成了11  [10 + 11]
  // // 第三步：执行加法，得到21
  // // 第四步：计算+=操作 n = n + 21  [11 + 21]
  // // 第五步：计算n++里面的自增1，...]]></description><category></category></item><item><title><![CDATA[定义数组指针变量的三种方法]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124684988</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124684988</guid><author>m0_61759645</author><pubDate>Tue, 10 May 2022 11:49:59 +0800</pubDate><description><![CDATA[定义数组指针变量的三中方法]]></description><category></category></item><item><title><![CDATA[数组地址与数组首元素地址]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124684678</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124684678</guid><author>m0_61759645</author><pubDate>Tue, 10 May 2022 11:36:38 +0800</pubDate><description><![CDATA[C语言数组]]></description><category></category></item><item><title><![CDATA[二级指针的内存四区]]></title><link>https://blog.youkuaiyun.com/m0_61759645/article/details/124676362</link><guid>https://blog.youkuaiyun.com/m0_61759645/article/details/124676362</guid><author>m0_61759645</author><pubDate>Mon, 09 May 2022 21:53:33 +0800</pubDate><description><![CDATA[#define  _CRT_SECURE_NO_WARNINGS 
#include &lt;stdlib.h&gt;
#include &lt;string.h&gt;
#include &lt;stdio.h&gt;


void main()
{
	int i = 0;

	//指针数组
	char *   p1[] = {"123", "456", "789"};


	//二维数组
	char p2[3][4]  = {"123", "456", "789"};

	//手工二维内存
...]]></description><category></category></item></channel></rss>