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编写应用程序，当鼠标进入窗口时，用一个文本框给出鼠标进入或离开的信息，当鼠标左键按下拖拽时，文本框给出鼠标所在点的坐标(Written application, when the mouse enters the window, a text box with the mouse enters or leaves given the information, press the left mouse button when dragging, the text box where the point given the coordinates of the mouse)

一个简单的计算器实现，带小数的加减乘除。使用Java AWT/Swing实现(Implement a simple calculator, decimal addition and subtraction)

说明：  java 入门到精通 从最简单的开始讲到最后的框架(java Entry to mastery Programming development)

用JAVA写的带通滤波代码，实现思路很简单，没有采用各种数字滤波的方法。而是通过傅里叶变换到频域，将要求外的频率均置0，再逆傅里叶变换得到的。效果还不错。(Written using JAVA bandpass filtering code to achieve the idea is very simple, without using a variety of digital filtering approach. But through the Fourier transform to the frequency domain, the frequency requirements are set to 0, then the inverse Fourier transform. Results were pretty good.)

java程序员上班那点事儿自己看过还可以的书免费跟大家共享(java programmer at work that point Shier his book can also be seen free of charge with the share)

一个简单英汉词典！，可以查询英文单词或中文单词的意思！(A simple English-Chinese dictionary! You can check English words or Chinese word meaning!)

一款Java版的课程表软件 联合开发网 - pudn.com

用java语言编写的蜘蛛纸牌游戏，与windows上的差不多。对运用java实践有极大的帮助，教你如何运用java开发游戏(Using java language Spider Solitaire Game, and the windows on the almost. Practice on the use of java there is a great help, teaching you how to use java develop Games)

java语言非常有用，它的设计模式更是有效地设计开发程序的工具。(java language is very useful, it is designed to model more efficient design and development procedures.)

说明：  repast仿真模拟人群逃生模型，基于java语言描写。(Repast simulation of crowd escape model)