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说明：  编写一个复数类，可以进行复数加法和减法运算。编写一个包含main方法的类（应用程序）测试该复数类。要求该复数类至少包含一个无参的构造方法和一个带参的构造方法；数据成员包括复数的实部和虚部，为double类型；包括两个方法，分别实现复数的加法和减法运算。(Write a complex class, which can add and subtract complex numbers. Write a class (application) containing the main method to test the complex class. The complex class is required to include at least one parametric construction method and one parametric construction method; the data members include the real and imaginary parts of the complex, which are of double type; and two methods are included to realize the addition and subtraction operations of the complex respectively.)

我的BT系统 v1.0 Beta1 欢迎使用我的BT系统V1.0beta1 上传所有文件到你的空间。(My BT System v1.0 Beta1 Welcome to my BT system V1.0beta1 upload all the files to your space.)

一系列实验参考资料,希望对大家有点参考价值.是用JAVA编写的(series of experiments reference, in the hope that right we are a bit reference value. Java is used to prepare the)

rsa加密算法的JAVA实现，程序没问题，可以可以参考参考(JAVA realization of the RSA encryption algorithm, the program no problem, you can refer to the reference)

记账：记录收入支出情况，随时可查看账单明细(Bookkeeping: recording income and expenditure, the details of the bill can be viewed at any time)

说明：  一个java聊天器的工程，源代码全在里面，建议MyEclipse打开工程(a java chat tool)

java mobile example canvas game

Code to figure out which local variables are active at which points in a method.

说明：  android开发环境安装手册，详细介绍了android项目开发前的环境搭建和安装流程。(Android development environment installation manual, detailed introduction of android project development environment construction and installation process.)

用JAVA编写的医院门诊查询系统，从其他地方下载下来的，供大家下载(JAVA prepared using hospital out-patient inquiry system, downloaded from other places, and for everyone to download)