JAVA编程的FTP客户端库选择技巧

本文介绍FTP编程及协议的基本原理,并基于原理提出在JAVA编程中CLIENT端程序包的选择依据,为JAVA FTP应用程序编程提供参考。同时提供JAVA FTP编程中需特别注意的问题和解决方案。     

基于计算机软件开发的JAVA编程语言进行分析探讨

利用JAVA编程语言,可以在不同平台上完成语言编程,所以JAVA编程语言目前在计算机软件开发中得到了广泛的应用。基于这种认识,本文对JAVA编程语言的概念及特点进行了分析,然后对计算机软件开发中的JAVA编程语言技术及其运用优势展开了探讨,从而为关注这一话题的人们提供参考。     

刍议软件开发中JAVA编程语言的应用

在时代飞速发展的今天,计算机技术日趋成熟,并且得到了广泛的应用;为了满足人们多样化的需求,开始大力开发计算机软件,在这个方面,JAVA编程语言就可以发挥较大的作用;JAVA因为其自身的一些优势,人们对其产生了较大的重视,相较于当年的C语言,有着更快的流行速度。本文简要分析了软件开发中JAVA编程语言的应用,希望可以提供一些有价值的参考意见。     

计算机软件JAVA编程特点分析

互联网逐渐走进了人们的生活圈,而JAVA编程在计算机软件的开发和利用上发挥了重要作用,也占据一定地位,它的编程语言比较简单,运行安全且稳定,平台性也比较好,在计算机中应用效果很好。和其他的程序软件相比,JAVA具有更明显的优势。本文分析了计算机软件中JAVA编程具有的特点。     

FTP客户端软件的实现

介绍了制作FTP客户端软件的全过程,利用Visual C＋＋提供的一个支持可视化编程的集成开发环境,设计并制作了FTP客户端界面;利用Sockets为Windows下网络异步通信提供了一种方便的开发和运行环境,实现了FTP上传下载等主要功能及相关的一些辅助功能,是基于FTP协议原理并结合VC＋＋6．0的相关特性来设计制作这个客户终端的,所以该终端具有可视化和易于使用的特点。     

基于JAVA语言实现的计算机远程桌面系统

本文介绍的远程桌面系统,是利用JAVA语言跨平台的特性以及其优秀的网络编程环境,实现了不同硬件环境和操作系统的计算机之间的远程桌面管理。主要涉及的技术有java语言、JAVA Robot技术,java网络编程。     

基于JAVA语言变现的计算机远程桌面系统

本文介绍的远程桌面系统,是利用JAVA语言跨平台的特性以及其优秀的网络编程环境,实现了不同硬件环境和操作系统的计算机之间的远程桌面管理。主要涉及的技术有java语言、JAVA Robot技术,java网络编程。     

JAVA的编程语言分析

Java是一种可以撰写跨平台应用程序的面向对象的程序设计语言。Java技术具有卓越的通用性、高效性、平台移植性和安全性,广泛应用于PC、数据中心、游戏控制台、科学超级计算机、移动电话和互联网,同时拥有全球最大的开发者专业社群。Java具有类似于C++语言的"形式和感觉",但它要比C++语言更易于使用,而且在编程时彻底采用了一种"以对象为导向"的方式。使用Java编写的应用程序,既可以在一台单独的电脑上运行,也可以被分布在一个网络的服务器端和客户端运行。另外,Java还可以被用来编写容量很小的应用程序模块或者applet,做为网页的一部分使用。applet可使网页使用者和网页之间进行交互式操作。Java是Sun微系统公司在1995年推出的,推出之后马上给互联网的交互式应用带来了新面貌。目前,最常用的两种互联网浏览器软件中都包括一个Java虚拟机。几乎所有的操作系统中都增添了Java编译程序。首先简单介绍了计算机软件开发的JAVA编程语言的概述,然后重点阐述了计算机软件开发的JAVA编程语言的主要特点,最后讲述JAVA编程语言在实际工作和生活中的应用和发展前景,为计算机软件编程提供参考。在计算机语言编程中,JAVA语言是一门高级的面向对象编程语言,可应用于多种操作系统,且具有较强的移植性能力,在促进信息技术方面发挥重要的作用,为计算机编程提供方便,推动计算机技术的全面发展。     

使用JAVA语言编写网络程序

就如何使用JAVA语言进行网络编程进行了论述。     

使用JAVA语言编写网络程序

就如何使用JAVA语言进行网络编程进行了论述。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese     

More than Skin Deep – Understand Skin Biology by Means of Dermatogenomics

<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.