是一个JAVA摇奖程序 用多线程实现 随机数

java编程入门书籍,介绍java编程的入门的一些知识的电子书-java

表达式计算代码,按优先级计算输入的表达式,支持括号,阶乘号,暂不支持三角函数！--Expression calculating code, it can calculate inputed expression by priority ,and supports parenthesis, factorial sign, and it does not support trigonometrical functions for now!

自动随机改变每次下载页面时页面信息。-random changes automatically each time the page download pages of information.

客户可通过鼠标在主面板上画任何想画的图形，然后还可以保存到电脑中.-Customers can draw the mouse in the main panel, anyone who wants to draw graphics, and then can also be saved to the computer.

利用Swing组件在弹出式菜单项间画分隔线-Drawing split line in Popumenu by java swing.

一些相关的小Java例子，供大家参考！

java program for file

finaloverridingillusion.ziplic class DoWhileDemo { public static void main(String[] args) { String copyFromMe = "Copy this string until you encounter the letter g ." StringBuffer copyToMe = new StringBuffer() int i = 0 char c = copyFromMe.charAt(i) do { copyToMe.append(c) c = copyFromMe.charAt(++i) } while (c != g ) System.out.println(copyToMe) } } -finaloverridingillusion.ziplic class D. oWhileDemo (public static void main (String [] args) (String copyFromMe = "Copy this string un til you encounter the letter g. "StringBuffer c opyToMe = new StringBuffer () int i = 0 char c = cop yFromMe.charAt (i) do (copyToMe.append (c) c = copyFromMe.charAt (i)) while (c! = g) System.o ut.println (copyToMe

md5算法的java源代码 很不错的程序-md5 algorithm java source code is very good procedures

可以话空心和实心的巨星，圆以及画板应该有的工能都有，还有调色板可以设置画板的前后背景色。-err