Java异常处理

异常处理是Java程序设计中一个非常重要的机制,也是程序设计的一大难点,就异常和异常处理方式等方面进行介绍,并通过一个实例来验证异常。     

基于Java点对点通信技术的DES密钥交换

介绍了使用Java的点对点通信技术,基于Diffie-Hellman规则,给出了IBM DES密钥交换的总体方案、算法和应用程序,详细说明了其中涉及的主要技术和方法,同时给出了在PC机上用二进制指数分解法实现大数模运算的算法分析和实现方案。     

基于Java反射机制的Excel文件导出实现

在信息量集中的系统中,把大量数据导出为Excel文件格式,既利于阅读也方便打印。这些特性使得Excel文件的导出被广泛应用于管理信息系统中。为了提高导出文件内容的个性化及易用性,本文探讨了利用Java的反射机制导出Excel文件的原理和方法。     

利用Applet制作电子相册

本文通过介绍Applet的体系结构和其生命周期以及如何创建和执行Applet程序,介绍了电子相册的制作过程。     

基于Web的冲天炉优化配料系统

用Java语言基于线性规划的理论开发了一个冲天炉的最低成本配料系统,并且采用B/S模式实现。应用数据库服务器储存各种原材料的数据信息,方便数据的维护。该系统使用方便,运行可靠,在精确控制铸件化学成分的前提下,使成本达到最低。     

基于Java/CORBA的多层Web应用系统研究与实现

简介了CORBA和Java技术,介绍两者结合构建多层及三层Web应用系统结构,并给出了一个AppletCORBADB结构的实现实例。     

基于VRML-Java的零件参数化仿真的实现

以实现基于网络的三维形体的参数化仿真为目的,采用VRML-Java作为开发平台,以螺栓零件为例,提出了实现零件交互式、参数化、动态仿真的一种方法.     

A GRASP × ELS approach for the job-shop with a web service paradigm packaging

The Job-Shop Scheduling Problem (JSSP) is well known for its complexity as an NP-hard disjunctive scheduling problem. The problem addressed in this paper is JSSPs with an objective of minimizing makespan while satisfying a number of hard constraints. An efficient GRASP × ELS approach is introduced for solving this problem. The efficiency is evaluated using the widely known 40 Laurence’s instances which encompass medium and large scale instances. The computational results prove that the proposed method competes with the best published methods in both quality of results and computational time. Recently, Web services have generated great interest in researchers. Such application architecture is based on the client–server model using existing Internet protocols and open standards. It provides new approaches to optimization methods. The proposed GRASP × ELS is packaged into a Web Service (WS), i.e., it offers for the research community an open access to our optimization approach. Moreover, the proposed web service can be even included in research future works with a very small programming effort.To favor utilization of the web service and to prove the facility in which the service could be used, we provide an example in Java proving that it is possible to obtain in less than 10 min a client application using the different methods exposed by this web service. Such usage extends to classical library inclusion in program with the difference that a method is called in the client side and represents an execution on the server.The Web Service paradigm is a new approach in spreading algorithms and therefore this paper stands at the crossroads of optimization research community and the web service community expectations. The GRASP × ELS provided in the web service, is a state of the art method which competes with previously published ones and which has the advantage of being available for free, in any languages, everywhere contributing in spreading operational research contribution.     

实时交互式虚拟EAST系统

实时交互式虚拟EAST(全超导托卡马克)系统能够三维重现EAST装置,在线获取EAST实验工程数据,实时显示等离子放电位形等三维物理实验成果。该系统采用B/S(浏览器/服务器)结构框架,结合了VRML(虚拟现实建模语言)和Java3D两种虚拟现实技术。利用VRML建立EAST三维仿真模型,结合Java3D实现用户与场景的交互,最终实现一个实时、动态的三维物理实验系统,从而推动EAST实验的进行。     

Java课程教学改革的探索与实践

传统的Java课程教学模式,已不能满足市场对人才的需求,也不符合我院培养应用型人才的办学定位。为此,从教学内容、教学方法、实践环节以及考评方式等方面对Java课程改革进行探讨并予以实践,从而提高教学质量．以更好地适应Java人才的社会需求。