java计算器实验报告引言.doc

java计算器实验报告引言 java计算器实验报告 课程设计论文 设计题目： java计算器 学生姓名： 指导教师： 专业名称： 所在院系： 秦皇岛职业技术学院信息工程系 摘 要 在当今这个网络的时代，java语言在网络编程方面的优势使得网络编程有了更好的选择。Java语言最大的特点是具有跨平台性，使其不受平台不同的影响，得到了广泛的应用。该程序是一个图形界面的java计算器,其界面主要采用了swing包， 程序实现了： （1）实现简单加、减、乘、除的运算。 （2）实现除了加、减、乘、除按钮外其他按钮功能。 （3）给软件添加一个编辑、查看、帮助的主菜单。 （4）在数据输入方面，提高程序代码的健壮性，增强其对非法输入数据的识别能力。 （5）科学型计算器与标准计算器之间的菜单切换。 Java的早期版本以来，抽象窗口工具包为用户界面组件提供了平台独立的API。在AWT中，每个组件都由一个原生的等同组件生成和控制，这个原生组件是由当前的图形窗口系统决定的。 与此相对，Swing 组件经常被描述为轻量级的，因为它们不需要操作系统本身所带窗口工具包的原生资源来生成。 I 秦皇岛职业技术学院信息工程系 目 录 第1章 概要设计 ·····························································································1 1.1查找资料 ·································································································1 1.2选题·········································································································1 1.3标准型计算器界面设计 ·········································································1 1.4本章小节 ·································································································3 第2章 程序整体设计说明 ·············································································4 2.1程序中所用到的变量 ·············································································4 2.2程序部分源代码及注释 ·········································································4 2.3本章小节 ······························································································· 15 第3章 程序运行效果 ··················································································· 16 3.1程序运行主界面 ··················································································· 16 3.2程序中各按钮运行界面 ······································································· 16 3.3本章小节 ······························································································· 20 第4章 设计中遇到的重点及难点 ································································ 21 4.1设计中遇到的重点 ································································