It can be argued that the current free-software movement is the most important thing happening in computing today. We are in the midst of a major shift from all software being proprietary and closely held by individual companies to a large body of software that can be freely acquired and used by anyone for any purpose. Free software now includes not only programming language compilers and linkers, but numerous utilities, graphical user interface environments, and even entire operating systems.
标签： free-software important happening the
上传时间： 2014-01-04
上传用户：aix008
Reads/writes text as a character stream, buffering characters so as to provide for the efficient reading/writing of characters, arrays, and lines. The buffer size may be specified, or the default size may be used. The default is large enough for most purposes. In general, each read request made of a Reader causes a corresponding read request to be made of the underlying character or byte stream. It is therefore advisable to wrap a BufferedReader around any Reader whose read() operations may be costly, such as FileReaders and InputStreamReaders.
标签： characters character buffering efficient
上传时间： 2017-02-20
上传用户：cjl42111
All of Java s Input/Output (I/O) facilities are based on streams, which provide simple ways to read and write data of different types. Java provides many different kinds of streams, each with its own application. The universe of streams is divided into four large categories: input streams and output streams, for reading and writing binary data and readers and writers, for reading and writing textual (character) data. You re almost certainly familiar with the basic kinds of streams--but did you know that there s a CipherInputStream for reading encrypted data? And a ZipOutputStream for automatically compressing data? Do you know how to use buffered streams effectively to make your I/O operations more efficient? Java I/O, 2nd Edition has been updated for Java 5.0 APIs and tells you all you ever need to know about streams--and probably more.
标签： facilities streams provide Output
上传时间： 2013-12-17
上传用户：6546544
Start it with this document[13 pages only] if you want to develop some good web application using Java instead of reading large books. This document prepared by myself. Clearly explains what is JDBC. and how you can connect to a particular database through JSP and Servlets. Examples are given.
标签： application document develop Start
上传时间： 2017-03-11
上传用户：顶得柱
Answering Queries using views is an article that contains an introduction to the theory and some algorithms, examples for the queries that uses views to resolve some problems. Also this article have a large references for more information about this subject.
标签： introduction Answering contains Queries
上传时间： 2017-03-18
上传用户：wangyi39
This book is an introduction to Ada 95. It uses an example-driven approach which gradually develops small trivial programs into large case-study type programs. The main emphasis of this book is on maintenance problems, and using object-oriented technology to write maintainable, extensible programs. Program design is introduced throughout the book, with hypothetical maintenance scenarios used to shoe design shortcomings. and revise them to accomodate maintenance needs. Practical issues such as debugging programs are tackled, and important Ada features not found in other languages are dealt with practically and early on in the text. These include exception handling, user-defined types, procedures, functions, packages and child packages.
标签： example-driven introduction gradually approach
上传时间： 2014-01-12
上传用户：koulian
We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
标签： effectiveness analytically numerically cloaking
上传时间： 2017-03-30
上传用户：zxc23456789
Picking Up Perl is a freely redistributable tutorial book on Perl that can be downloaded in pdf, postscript, or textinfo format. It can also be viewed online in html format, either as one large file or as separate files for each chapter.
标签： Perl redistributable downloaded tutorial
上传时间： 2014-01-14
上传用户：colinal
2007年全国大学生电子设计大赛，A题音频信号分析仪的全部源程序。 单片机为c8051f120，系统时钟倍频至96MHZ。 main.c是一个包含五级菜单的主函数。 FFT.C是进行fft变换，将时域信号变换成频域信号。 flash.c是读写片外flash存储器的程序,可以将分析结果保存,以备调用. z7290.c是周立功7290键盘芯片的驱动程序. FFT_xgjis.c是对变换后的频谱进行分析和运算. FFT_CodeTable.c是一个正弦表,在FFT的时候调用. LCD320240.c是320*240的液晶驱动程序,液晶的控制器是SED1335. 所有的.h文件提供了子函数的定义. 本程序用KEIL3 802版本编译通过，将所有的.C文件添加到工程中，并编译main.c 注意两点:1.器件选择c8051f120. 2.在target中将时钟设为96M.同时必须将Memory Model 改成large--XDATA.默认的是small. 因为本设计占用的资源是非常大的. Program Size: data=81.3 xdata=6811 code=43056
上传时间： 2014-01-05
上传用户：manlian
This gorgeous, full-color book will guide you through the complete design process, from getting inspiration and sketching ideas out, through to choosing a color scheme, designing the layout, and selecting effective imagery. Throughout, the focus is on simple and practical techniques that anyone can use 鈥?you don鈥檛 need to have gone to art school or have artistic flair to create stunning designs using the methods outlined in this book. You鈥檒l follow along as author and design guru Jason Beaird creates a complete web site layout using the techniques that you鈥檝e learned. The book鈥檚 full-color layout and large format (8鈥?x 10鈥? make The Principles Of Beautiful Wed Design a pleasure to read.
标签： full-color gorgeous complete getting
上传时间： 2017-05-08
上传用户：2404
