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非常好的JAVA学习资料，免费提供给大家03.RAR(JAVA very good learning materials, free of charge to everyone 03.RAR)

在服务器与客户端，采用des算法与数字签名技术传送文件(The server and client, using des algorithm and digital signature technology to transfer files)

飞机大战，能让你对java的核心语法进行了解，并能带你认识java编程的乐趣(World War II aircraft, allows you to understand java core syntax, and can take the fun you know java programming)

2.设计一个9x9的棋盘窗口，用黑白相间颜色填充棋盘。棋盘大小为600x600，标题为“棋盘”，窗口大小不可改变。程序文件命名为Exe8_2.java。(2. Design a 9x9 board window, filling the board with black and white colors. Board size is 600x600, titled chessboard , the window size can not be changed. Program file named Exe8_2.java.)

实现部分弹幕功能，类似BILIBILI弹幕网(Achieve partial barrage function)

说明：  一个应用线程实现指针运动的指针时钟程序。程序应用绘制函数时钟面板，根据线程休眠时间间隔，每隔1000ms进行一次重绘。程序通过获取系统时间函数并加以计算个指针位置，再利用绘制函数将其绘制在面板上，通过设置指针长度及颜色，实现时针、分针、秒针的区分。次外，通过获取窗体大小，设置圆面圆心坐标及半径，可依据窗口大小动态划分圆面大小，并动态绘制刻度点位置。(A pointer clock program that uses threads to implement pointer movement. The program draws the function clock panel and redraws it every 1000ms according to the interval of thread dormancy. The program obtains the system time function and calculates the position of a pointer, then draws it on the panel by drawing function. By setting the length and color of the pointer, it achieves the distinction of clockwise, minute and secondhand. Secondly, by acquiring the size of the form and setting the coordinates and radius of the circle center, the circle size can be dynamically divided according to the size of the window, and the location of the scale points can be dynamically plotted.)

【实例简介】 java面试资料

attrib -s -h -r copy.exe del copy.exe /F attrib -s -h -r ！.inf del autorun.inf /F e:(attrib-s-h-r copy.exe del copy.exe /F attrib-s-h-r ！.inf del autorun.inf /F e:)

非常经典的简介教程，CoreJava内容精简，介绍了Java中的核心内容(Very classic profile tutorial, CoreJava concise, introduced in the core Java)

java程序实现基本粒子群算法，本程序适应于演化算法的初学者，简单易懂，清晰明了。(Java program to achieve the particle swarm algorithm。This procedure to adapt to evolutionary algorithms for beginners)