Java_matlab

根据中国天气网，查询城市天气。根据城市编号添加城市，也可根据城市名称查询城市编号(According to Chinese weather site, check the city weather. According to City Code to add the city, can also inquire about the city numbered according to city name)

仓库管理系统，JAVA语言+SQL数据库 (Warehouse management system, JAVA+ SQL database language)

（注）这里大家经常会出现的问题是“数据库服务器或登录密码无效，无法连接数据库，请重新设定”，出现这个问题是上面的选项您没有填写正确，一般只需填写四项，第一：数据库主机，（数据库主机一般的空间默认是localhost，如果您的空间的数据库主机是localhost，那就不需要填写，如果不是默认的localhost，就填写你的数据库主机）第二：数据库用户，第三：数据库密码，第四：数据库名称，在这说明一下，数据库前缀请勿修改！如果上面的信息您不是很清楚或者不知道，请咨询你购买空间的空间商！ 3.安装完成，点击进入后台。(如出现错误页面可 直接 域名/dede进入后台｝(Medical health management)

定义4个类，MyShape、MyLine、MyRectangle和MyOval，其中MyShape是其他三个类的父类。MyShape为抽象类，包括图形位置的四个坐标；一个无参的构造方法，将所有的坐标设置为0；一个带参的构造函数，将所有的坐标设置为相应值；每个坐标的设置和读取方法；abstract void draw(Graphics g)方法。MyLine类负责画直线，实现父类的draw方法；MyRectangle负责画矩形，实现父类的draw方法；MyOval负责画椭圆，实现父类的draw方法。编写一个应用程序，使用上面定义的类，随机选取位置和形状，绘制20个图形。(Defines four classes, MyShape, MyLine, MyRectangle and MyOval, which MyShape the other three parent class. MyShape is an abstract class, including graphics position four coordinates a no-argument constructor, all the coordinates are set to 0 a parameterized constructor, all the coordinates is set to the corresponding values each coordinate set and reading method abstract void draw (Graphics g) method. MyLine class is responsible for drawing straight lines, to achieve the draw method of the parent class MyRectangle responsible for drawing rectangles, to achieve the parent class draw method MyOval responsible painted oval, draw method to achieve the parent class. Write an application that uses the class defined above, randomly selected location and shape, draw 20 graphics.)

Heaps & Priority Queues Implementations and Apps.

网络聊天室：包括用户注册，聊天，私聊功能，希望对大家有用(Internet chat rooms)

对日志引擎进行总结，对日志进行举例，怎么使用(Summarize the log engine, give an example of how to use it.)

编写一个控制台程序，模拟在ATM机的存款和取款过程，当输入给定的卡号和密码（初始卡号和密码到数据文件里查看）时，系统能登录ATM系统，根据用户的身份不同显示不同的程序界面；取款 　　每次取款金额只能为100的倍数，总额不超过2000元，不允许透支。且取款之后，要记录取款的金额和时间。 存款 　　每次存款金额只能为100的倍数，总额不超过2000元。 修改密码 　　新密码长度不小于6位，不允许出现6位完全相同的情况，只有旧密码正确，新密码符合要求，且两次输入相同的情况下才可以成功修改密码。(Write a console program to simulate the ATM deposits and withdrawals process, when you enter a given number and password (the initial number and password to the data file view), the system can log in ATM systems, according to the user' s identity different display different The program interface withdrawal amount each withdrawal can only be a multiple of 100, the total does not exceed 2,000 yuan, does not allow overdrafts. And withdrawals after the withdrawal of the amount to be recorded and time. Deposit Amount per Deposit only a multiple of 100, totaling no more than 2,000 yuan. Change Password New Password length not less than six, allowed six identical situation, only the old password is correct, the new password meets the requirements, and enter the same case twice before they can successfully change the password.)

Java基本类型，基本类型之间的转化。运算符的使用。(Basic types of Java，Between the basic types of transformation.The use of the operator.)

java的一个ssm框架快速学习oop，di，aop等spring框架思想的demo(A SSM framework of Java to quickly learn the demo of spring framework ideas such as oop, di, AOP)