me to do a small calculator java procedures

Lex是美国Bell实验室用C语言研制的一个词法分析程序自生成工具。它的基本原理就是使用正则表达式扫描匹配文本，并为每一个匹配模式定义一些操作，当用C语言作宿主语言时，这些操作都由C语言实现。一种匹配的正则表达式可能会包含相关的动作。这一动作可能还包括返回一个标记。当 Lex 接收到文件或文本形式的输入时，它试图将文本与正则表达式进行匹配。它一次读入一个输入字符，直到找到一个匹配的模式。如果能够找到一个匹配的模式，Lex 就执行相关的动作（可能包括返回一个标记）。-Lex Bell Laboratories of the United States with C language developed by a lexical analysis tool generated from the process. Its fundamental principle is to use a regular expression matching text scanning, and for every definition of a matching model for operation, when the C language of the host language, these operators by C language. A match of which is likely to contain expressions related to the moves. This action may also include the return of a marker. When Lex reception of the document or text input, it is trying to text and is a regular expression matching. It read an input into the characters, until they found a matching pattern. If they can find a matching model, Lex on the implementation of the action (which may include a return of markings).

这是一个利用JavaScript语言来设置一个用户登录的程序-JavaScript

visitor设计模式源码 希望对大家有所帮助-failed to translate

自制jfreechart带时间线的柱状、线性图-homemade jfreechart with Time Line column, linear map

JSP与Servlet核心技术-JSP and Servlet core technology

在网山自由的你要的无线电多么舒服 开发工具jsp+javabean+servlet 一个很有意思的小程序-in Shan freedom to the radio you how uncomfortable development tools jsp javabean servlet a very interesting small program

创建二叉树Java程序

Struts+Spring开发，一个简单的demo,可以在此基础上进行具体的开发。-Struts development, a simple demo. This can be conducted on the basis of specific development.

一个高效的计算24点的程序 可以选择是否交换运算参数顺序(不同顺序的加法或乘法) 可以选择是否根据运算符号的前后关系确定是否添加括号 可以选择随机产生四个数字 自动排除重复的计算表达式

生成指定点数的随机点，并用两种不同的算法求出这些点的最小包围圆（Smallest Enclosing Circle），并比较结果-Generate the specified number of random points, and using two different algorithms to derive these points surrounded by the smallest circle (Smallest Enclosing Circle), and compare the results of