Java-run

说明：  创建一个类，提供与java .lang.Math同名的所有方法，但每个方法均按度数而非弧度进行运算。具体要求是:在自己编写的类中，对Math类中的每一个方法加一层包装。(Create a class that provides all methods with the same name as java. lang. Math, but each method operates in degrees rather than radians. Specific requirements are: in their own class, each method in the Math class with a layer of packaging.)

建构一个类，在类中new一个StringBuffer变量，以程式令其内含值成为A26B25C24D23......Z1(Construct a class, in which a new StringBuffer variable has been programmed to have an intrinsic value of A26B25C24D23....Z1)

东北大学软件学院面向对象程序设计课程的实验代码，是一个咖啡馆管理系统，希望对java感兴趣的朋友有所帮助。(Experimental code of the Northeastern University School of Software object-oriented programming courses, a coffee shop management system, hoping to help the java interested friends.)

Java微软Access工具，用于读取或创建微软Access数据库文件，支持1997-2019全部版本。(Java Microsoft Access tool, used to read or create Microsoft Access database files, supporting all versions of 1997-2019.)

a simple text editor

Java应用程序例 配有注释的代码，从低级到高级，适合初学者。(Java Programming)

给出了几种用java语言编写的登陆界面的例子，希望对初学者有帮助(Given several landing using java language interface examples, I hope to help beginners)

数制转换和运算方法。用Java语言编写一个十六进制大数运算程序 (Number system conversion and computing methods. Java language using a hexadecimal calculation procedures of large numbers)

说明：  一只青蛙一次可以跳上1级台阶，也可以跳上2级。求该青蛙跳上一个n级的台阶总共有多少种跳法。要求：分别用普通方法和递归方法实现(A frog can jump up a step or two at a time. Find out how many jumping methods the frog can use to jump up an n-step. Requirements: Implemented by common method and recursive method respectively)

这是一本学习好Java的外文书籍，通过这本书，我们可以接触到其中的运行机制以及代码的编写方式(This is a good learning Java-language books, through this book, we can come into contact with one of the operating mechanism and the code is written in a way)