| can t open file for writing: Practical Common Lisp Peter Seibel, 2006-11-01 * Treats LISP as a language for commercial applications, not a language for academic AI concerns. This could be considered to be a secondary text for the Lisp course that most schools teach . This would appeal to students who sat through a LISP course in college without quite getting it – so a nostalgia approach, as in wow-lisp can be practical... * Discusses the Lisp programming model and environment. Contains an introduction to the language and gives a thorough overview of all of Common Lisp’s main features. * Designed for experienced programmers no matter what languages they may be coming from and written for a modern audience—programmers who are familiar with languages like Java, Python, and Perl. * Includes several examples of working code that actually does something useful like Web programming and database access. |
| can t open file for writing: Beginning PHP5 Dave W. Mercer, Allan Kent, Steven D. Nowicki, David Mercer, Dan Squier, Wankyu Choi, 2005-02-11 What is this book about? Beginning PHP5 is a complete tutorial in PHP5'slanguage features and functionality, beginning with the basics andbuilding up to the design and construction of complex data-drivenWeb sites. Fully functioning applications are developed through thecourse of the book. Other features of the book include installationguide and troubleshooting tips, introduction to relationaldatabases, practical working examples and applications, and adetailed language reference. Here are the new topics in this edition: OOP PEAR GTK MSI CLI SQLite Error handling with try/catch |
| can t open file for writing: Beginning C Ivor Horton, 2007-12-22 C is the programming language of choice when speed and reliability are required. It is used for many low-level tasks, such as device drivers and operating-system programming. For example, much of Windows and Linux is based on C programming. The updated 4th edition of Beginning C builds on the strengths of its predecessors to offer an essential guide for anyone who wants to learn C or desires a ‘brush-up’ in this compact, fundamental language. This classic from author, lecturer and respected academic Ivor Horton is the essential guide for anyone looking to learn the C language from the ground up. |
| can t open file for writing: x64 Assembly Language Step-by-Step Jeff Duntemann, 2023-09-21 The long-awaited x64 edition of the bestselling introduction to Intel assembly language In the newly revised fourth edition of x64 Assembly Language Step-by-Step: Programming with Linux, author Jeff Duntemann delivers an extensively rewritten introduction to assembly language with a strong focus on 64-bit long-mode Linux assembler. The book offers a lighthearted, robust, and accessible approach to a challenging technical discipline, giving you a step-by-step path to learning assembly code that’s engaging and easy to read. x64 Assembly Language Step-by-Step makes quick work of programmable computing basics, the concepts of binary and hexadecimal number systems, the Intel x86/x64 computer architecture, and the process of Linux software development to dive deep into the x64 instruction set, memory addressing, procedures, macros, and interface to the C-language code libraries on which Linux is built. You’ll also find: A set of free and open-source development and debugging tools you can download and put to use immediately Numerous examples woven throughout the book to illustrate the practical implementation of the ideas discussed within Practical tips on software design, coding, testing, and debugging A one-stop resource for aspiring and practicing Intel assembly programmers, the latest edition of this celebrated text provides readers with an authoritative tutorial approach to x64 technology that’s ideal for self-paced instruction. |
| can t open file for writing: Programming in C++ J. B. Dixit, 2005 |
| can t open file for writing: Learning the Vi and Vim Editors Arnold Robbins, Elbert Hannah, Linda Lamb, 2008-07-15 There's nothing that hard-core Unix and Linux users are more fanatical about than their text editor. Editors are the subject of adoration and worship, or of scorn and ridicule, depending upon whether the topic of discussion is your editor or someone else's. vi has been the standard editor for close to 30 years. Popular on Unix and Linux, it has a growing following on Windows systems, too. Most experienced system administrators cite vi as their tool of choice. And since 1986, this book has been the guide for vi. However, Unix systems are not what they were 30 years ago, and neither is this book. While retaining all the valuable features of previous editions, the 7th edition of Learning the vi and vim Editors has been expanded to include detailed information on vim, the leading vi clone. vim is the default version of vi on most Linux systems and on Mac OS X, and is available for many other operating systems too. With this guide, you learn text editing basics and advanced tools for both editors, such as multi-window editing, how to write both interactive macros and scripts to extend the editor, and power tools for programmers -- all in the easy-to-follow style that has made this book a classic. Learning the vi and vim Editors includes: A complete introduction to text editing with vi: How to move around vi in a hurry Beyond the basics, such as using buffers vi's global search and replacement Advanced editing, including customizing vi and executing Unix commands How to make full use of vim: Extended text objects and more powerful regular expressions Multi-window editing and powerful vim scripts How to make full use of the GUI version of vim, called gvim vim's enhancements for programmers, such as syntax highlighting, folding and extended tags Coverage of three other popular vi clones -- nvi, elvis, and vile -- is also included. You'll find several valuable appendixes, including an alphabetical quick reference to both vi and ex mode commands for regular vi and for vim, plus an updated appendix on vi and the Internet. Learning either vi or vim is required knowledge if you use Linux or Unix, and in either case, reading this book is essential. After reading this book, the choice of editor will be obvious for you too. |
| can t open file for writing: Programming Perl Tom Christiansen, brian d foy, Larry Wall, Jon Orwant, 2012-02-17 Adopted as the undisputed Perl bible soon after the first edition appeared in 1991, Programming Perl is still the go-to guide for this highly practical language. Perl began life as a super-fueled text processing utility, but quickly evolved into a general purpose programming language that’s helped hundreds of thousands of programmers, system administrators, and enthusiasts, like you, get your job done. In this much-anticipated update to the Camel, three renowned Perl authors cover the language up to its current version, Perl 5.14, with a preview of features in the upcoming 5.16. In a world where Unicode is increasingly essential for text processing, Perl offers the best and least painful support of any major language, smoothly integrating Unicode everywhere—including in Perl’s most popular feature: regular expressions. Important features covered by this update include: New keywords and syntax I/O layers and encodings New backslash escapes Unicode 6.0 Unicode grapheme clusters and properties Named captures in regexes Recursive and grammatical patterns Expanded coverage of CPAN Current best practices |
| can t open file for writing: Beginning C, 5th Edition Ivor Horton, 2013-04-01 Beginning C, 5th Edition teaches you how to program using the widely-available C language. You'll begin from first-principles and progress through step-by-step examples to become a competent, C-language programmer. All you need are this book and any of the widely available free or commercial C or C++ compilers, and you'll soon be writing real C programs. C is a foundational language that every programmer ought to know. C is the basis for C# used in Microsoft .NET programming. It is the basis for Objective-C used in programming for the iPhone, the iPad, and other Apple devices. It is the basis for the C++ that is widely used in a great many contexts, including the GNU Project. It underlies the Linux operating system and many of its utilities. Learning C provides a strong foundation for any programming care, and will even help you better understand more modern languages such as Java. Beginning C is written by renowned author Ivor Horton. The book increases your programming expertise by guiding you through the development of fully working C applications that use what you've learned in a practical context. You’ll also be able to strike out on your own by trying the exercises included at the end of each chapter. At the end of the book you'll be confident in your skills with all facets of the widely-used and powerful C language. The only beginning-level book to cover the latest ANSI standard in C Revised to cover C99 features newly-supported by language compilers Emphasizes writing code after the first chapter Includes substantial examples relevant to intermediate users |
| can t open file for writing: Beginning Perl James Lee, 2010-06-14 This is a book for those of us who believed that we didn’t need to learn Perl, and now we know it is more ubiquitous than ever. Perl is extremely flexible and powerful, and it isn’t afraid of Web 2.0 or the cloud. Originally touted as the duct tape of the Internet, Perl has since evolved into a multipurpose, multiplatform language present absolutely everywhere: heavy-duty web applications, the cloud, systems administration, natural language processing, and financial engineering. Beginning Perl, Third Edition provides valuable insight into Perl’s role regarding all of these tasks and more. Commencing with a comprehensive overview of language basics, you’ll learn all about important concepts such as Perl’s data types and control flow constructs. This material sets the stage for a discussion of more complex topics, such as writing custom functions, using regular expressions, and file input and output. Next, the book moves on to the advanced topics of object-oriented programming, modules, web programming, and database administration with Perl’s powerful database interface module, DBI. The examples and code provided offer you all of the information you need to start writing your own powerful scripts to solve the problems listed above, and many more. Whether you are a complete novice or an experienced programmer, Beginning Perl, Third Edition offers an ideal guide to learning Perl. |
| can t open file for writing: Linux System Programming Techniques Jack-Benny Persson, 2021-05-07 Find solutions to all your problems related to Linux system programming using practical recipes for developing your own system programs Key FeaturesDevelop a deeper understanding of how Linux system programming worksGain hands-on experience of working with different Linux projects with the help of practical examplesLearn how to develop your own programs for LinuxBook Description Linux is the world's most popular open source operating system (OS). Linux System Programming Techniques will enable you to extend the Linux OS with your own system programs and communicate with other programs on the system. The book begins by exploring the Linux filesystem, its basic commands, built-in manual pages, the GNU compiler collection (GCC), and Linux system calls. You'll then discover how to handle errors in your programs and will learn to catch errors and print relevant information about them. The book takes you through multiple recipes on how to read and write files on the system, using both streams and file descriptors. As you advance, you'll delve into forking, creating zombie processes, and daemons, along with recipes on how to handle daemons using systemd. After this, you'll find out how to create shared libraries and start exploring different types of interprocess communication (IPC). In the later chapters, recipes on how to write programs using POSIX threads and how to debug your programs using the GNU debugger (GDB) and Valgrind will also be covered. By the end of this Linux book, you will be able to develop your own system programs for Linux, including daemons, tools, clients, and filters. What you will learnDiscover how to write programs for the Linux system using a wide variety of system callsDelve into the working of POSIX functionsUnderstand and use key concepts such as signals, pipes, IPC, and process managementFind out how to integrate programs with a Linux systemExplore advanced topics such as filesystem operations, creating shared libraries, and debugging your programsGain an overall understanding of how to debug your programs using ValgrindWho this book is for This book is for anyone who wants to develop system programs for Linux and gain a deeper understanding of the Linux system. The book is beneficial for anyone who is facing issues related to a particular part of Linux system programming and is looking for specific recipes or solutions. |
| can t open file for writing: Windows Server 2016: The Administrator's Reference William Stanek, 2016-11-01 This super-sized desktop reference combines two personal training guides in one convenient volume. Completely updated for Windows Server 2016 RTM and covering all editions of the operating system. Over 250,000 words. Includes: Windows Server 2016: Essentials for Administration Windows Server 2016: Server Infrastructure Inside you'll find expert insights, tips, tricks and workarounds that will save time and help you get the job done by giving you the right information right now. During the course of reading this book, you will master a number of complex topics, techniques, commands and functions. Like the individual books themselves and all IT Pro Solutions books, this reference set will be updated periodically to keep pace with the changes in Windows Server 2016. Pricing of this set is based on the MSRP of $29.99 for each ebook. From time to time you may find introductory or sale pricing of the individual books. Topics covered include: Planning for Windows Server 2016 and developing a deployment plan Using containers, virtualization and nano server Configuring server roles, services and features Managing and troubleshooting Active Directory Creating and managing user, group and computer accounts Monitoring and tuning performance Optimizing security settings, policies and templates Managing file services and data storage Configuring file sharing Managing share permissions and auditing resource usage Using group policy for administration Configuring and maintaining print services Deploying essential infrastructure services including DHCP and DNS Maintaining and troubleshooting Windows Server 2016 And much, much more!!! Not only will this informative training manual help you become familiar with essential concepts, it'll help you reach new levels of mastery. This is the ideal ready-answers reference you’ll want with you at all times. Table of Contents Chapter 1. Welcome to Windows Server 2016 Chapter 2. Working with Windows Servers Chapter 3. Configuring Server Settings Chapter 4. Understanding Active Directory Chapter 5. Managing Active Directory Chapter 6. Maintaining Active Directory Chapter 7. Accounts: The Essentials Chapter 8. Managing Account Policies Chapter 9. Creating Accounts Chapter 10. Working with Managed Accounts Chapter 11. Managing Computers, Users and Groups Chapter 12. Maintaining Your Servers Chapter 13. Optimizing Server Performance Chapter 14. Using Group Policy Chapter 15. Maintaining and Troubleshooting Group Policy Chapter 16. Optimizing Server Security Chapter 17. Deploying Windows Server 2016 Chapter 18. Implementing TCP/IP Networking Chapter 19. Data Storage: The Essentials Chapter 20. Partitioning and Optimizing Drives Chapter 21. Using TPM and BitLocker Drive Encryption Chapter 22. Using Storage Spaces Chapter 23. Using RAID Chapter 24. Maintaining Partitions and Drives Chapter 25. Implementing File Sharing Chapter 26. Using Shadow Copies and Work Folders Chapter 27. Managing Permissions and Auditing Chapter 28. Configuring Disk Quotas Chapter 29. Using Group Policy for Administration Chapter 30. Implementing Print Services Chapter 31. Configuring and Maintaining Print Services Chapter 32. Implementing DHCP Chapter 33. Managing and Maintaining DHCP Chapter 34. Implementing DNS Chapter 35. Managing and Maintaining DNS Thank you readers for your years of support! Check the companion website for updates and details on extras. Your support of this reference set will ensure that I can continue to refresh and expand it. |
| can t open file for writing: Primer on PHP Hajiram Beevi J, Khairunnisa, Munawara Banu S, 2020-11-20 This book is useful for beginner's level with simple programs |
| can t open file for writing: PC Mag , 1988-05-31 PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. Our expert industry analysis and practical solutions help you make better buying decisions and get more from technology. |
| can t open file for writing: Programming Bjarne Stroustrup, 2024-04-10 An Introduction to Programming by the Inventor of C++ Programming: Principles and Practice Using C++, Third Edition, will help anyone who is willing to work hard learn the fundamental principles of programming and develop the practical skills needed for programming in the real world. Previous editions have been used successfully by many thousands of students. This revised and updated edition Assumes that your aim is to eventually write programs that are good enough for others to use and maintain Focuses on fundamental concepts and techniques, rather than on obscure language-technical details Is an introduction to programming in general, including procedural, object-oriented, and generic programming, rather than just an introduction to a programming language Covers both contemporary high-level techniques and the lower-level techniques needed for efficient use of hardware Will give you a solid foundation for writing useful, correct, type-safe, maintainable, and efficient code Is primarily designed for people who have never programmed before, but even seasoned programmers have found previous editions useful as an introduction to more effective concepts and techniques Covers a wide range of essential concepts, design and programming techniques, language features, and libraries Uses contemporary C++ (C++20 and C++23) Covers the design and use of both built-in types and user-defi ned types, complete with input, output, computation, and simple graphics/GUI Offers an introduction to the C++ standard library containers and algorithms Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details. |
| can t open file for writing: PHP Cookbook David Sklar, Adam Trachtenberg, 2006-08-25 Programmers and web designers will learn how to build dynamic web applications that work on any web browser and on any web server that supports CGI scripts - interactive programs that aren't tied to particular systems. |
| can t open file for writing: Pro JavaScript Performance Tom Barker, 2012-12-30 Performance is a hugely important area of web development. If your site runs slowly, users are going to leave, and the problem only grows as your site gets more popular. Pro JavaScript Performance gives you the tools you need to keep your sites smooth and responsive no matter how many users you have. Best practices are changing or becoming redefined continually because of changes and optimizations at the interpreter level, and differences in system configuration, and network speeds. This is exacerbated by the quickened release schedule that most browsers have adopted. Just as important as following best practices is the ability to measure your own performance, so that you can adjust as times change, and so that you can note the subtle nuances in your own code and define your own best practices by your own observations. This book gives you the tools to observe and track the performance of your web applications over time from multiple perspectives, so that you are always aware of, and can fix, all aspects of your performance. |
| can t open file for writing: Using C-Kermit Frank da Cruz, Christine Gianone, 1996-11-20 Written by the co-managers of the Kermit Project, this is a revised and updated tutorial on data communications, with new material on today's high-speed modems and how to make the best use of them |
| can t open file for writing: Making Use of PHP Ashok Appu, 2002-10-02 PHP has an edge over locked-in solutions such as JSP and ASP for most Web development work because it is a cross-platform technology. Surveys indicate that PHP is rapidly becoming the most widely used Web scripting language and PHP skills are now considered essential for many Web developers. * Explains why PHP is easier to learn than Perl or JavaScript and how it is useful in server-side development and administration tasks * Offers guidance to fully utilizing the possibilities of PHP * Enables Web designers and others with HTML skills to quickly gain essential abilities for site administration and content development |
| can t open file for writing: CGI Programming 101 Jacqueline D. Hamilton, 2004 This concise presentation of the key elements of Perl CGI is perfect for programmers who are under the gun. The book includes the basics of where to write scripts; how to upload them and set file permissions; how to run them, and how to decode form data and save it to a file. |
| can t open file for writing: Practical Ruby for System Administration Andre Ben-Hamou, 2007-10-15 Within the pages of Practical Ruby for System Administration, you'll learn the Ruby way to construct files, tap into clouds of data, build domain-specific languages, perform network traffic analysis, and more. Coverage places equal emphasis on fundamental Ruby concepts as well as practical how-tos. Based on author André Ben Hamou's own experiences working as a system administrator, this book will help you pick up practical tips on Ruby coding style, learn how to analyze and improve script performance, and make use of no-nonsense advice on scripting workflow, including testing, documentation, and version control. |
| can t open file for writing: Mastering Visual Basic .NET Evangelos Petroutsos, 2006-02-20 VB Programmers: Get in Step with .NET With the introduction of Visual Basic .NET, VB transcends its traditional second-class status to become a full-fledged citizen of the object-oriented programming, letting you access the full power of the Windows platform for the first time. Written bythe author of the best-selling Mastering Visual Basic 6 this all-new edition is the resource you need to make a successful transition to .NET. Comprising in-depth explanations, practical examples, and handy reference information, its coverage includes: Mastering the new Windows Forms Designer and controls Building dynamic forms Using powerful Framework classes such as ArrayLists and HashTables Persisting objects to disk files Handling graphics and printing Achieving robustness via structured exception handling and debugging Developing your own classes and extending existing ones via inheritance Building custom Windows controls Building menus and list controls with custom-drawn items Using ADO.NET to build disconnected, distributed applications Using SQL queries and stored procedures with ADO.NET Facilitating database programming with the visual database tools Building web applications with ASP.NET and the rich web controls Designing web applications to access databases Using the DataGrid and DataList web controls Building XML web services to use with Windows and web applications Special topics like the Multiple Document Interface and powerful recursive programming techniques Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file. |
| can t open file for writing: Automating Microsoft Access with VBA Mike Gunderloy, Susan Sales Harkins, 2004-09-14 This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version. If you use Microsoft Access in your every day business life but haven't learned to fully exploit the program, now's your chance. Automating Microsoft Access with VBA is a thorough introduction to programming Microsoft Accessing using Visual Basic for Applications (VBA). With this book, you will gain a working knowledge of VBA and be able to customize your Microsoft Access databases. You will cover topics that include: Operators and functions Debugging and error handling Menu commands Forms and reports Jet databases DAO object model Save money by learning to use VBA to customize your databases instead of paying someone else to do it for you! |
| can t open file for writing: C++ All-in-One For Dummies John Paul Mueller, Jeffrey M. Cogswell, 2014-07-24 Get ahead of the C++ curve to stay in the game C++ is the workhorse of programming languages and remains one of the most widely used programming languages today. It's cross-platform, multi-functional, and updates are typically open-source. The language itself is object-oriented, offering you the utmost control over data usage, interface, and resource allocation. If your job involves data, C++ proficiency makes you indispensable. C++ All-in-One For Dummies, 3rd Edition is your number-one handbook to C++ mastery. Author John Paul Mueller is a recognized authority in the computer industry, and your ultimate guide to C++. Mueller takes you through all things C++, including information relevant to the 2014 update. Learn how to work with objects and classes Conquer advanced programming and troubleshooting Discover how lambda expressions can make your code more concise and readable See Standard Library features, such as dynamic arrays, in action Online resources include source code from examples in the book as well as a C++ GNU compiler. If you need to learn C++, this is the fastest, most effective way to do it. C++ All-in-One For Dummies, 3rd Edition will get you up and running quickly, so you can get to work producing code faster and better than ever. |
| can t open file for writing: Computer Science with C++ Reeta Sahoo, Gagan Sahoo, A series of Book of Computers . The ebook version does not contain CD. |
| can t open file for writing: Perl Cookbook Tom Christiansen, Nathan Torkington, 2003-08-21 Find a Perl programmer, and you'll find a copy of Perl Cookbook nearby. Perl Cookbook is a comprehensive collection of problems, solutions, and practical examples for anyone programming in Perl. The book contains hundreds of rigorously reviewed Perl recipes and thousands of examples ranging from brief one-liners to complete applications.The second edition of Perl Cookbook has been fully updated for Perl 5.8, with extensive changes for Unicode support, I/O layers, mod_perl, and new technologies that have emerged since the previous edition of the book. Recipes have been updated to include the latest modules. New recipes have been added to every chapter of the book, and some chapters have almost doubled in size.Covered topic areas include: Manipulating strings, numbers, dates, arrays, and hashes Pattern matching and text substitutions References, data structures, objects, and classes Signals and exceptions Screen addressing, menus, and graphical applications Managing other processes Writing secure scripts Client-server programming Internet applications programming with mail, news, ftp, and telnet CGI and mod_perl programming Web programming Since its first release in 1998, Perl Cookbook has earned its place in the libraries of serious Perl users of all levels of expertise by providing practical answers, code examples, and mini-tutorials addressing the challenges that programmers face. Now the second edition of this bestselling book is ready to earn its place among the ranks of favorite Perl books as well.Whether you're a novice or veteran Perl programmer, you'll find Perl Cookbook, 2nd Edition to be one of the most useful books on Perl available. Its comfortable discussion style and accurate attention to detail cover just about any topic you'd want to know about. You can get by without having this book in your library, but once you've tried a few of the recipes, you won't want to. |
| can t open file for writing: Windows Server 2016: Server Infrastructure William Stanek, 2016-11-01 Expert advice for Windows Server 2016 right at your fingertips. Updated. Practical and precise, this hands-on guide with ready answers is designed for IT professionals working with Windows Server 2016. If you're an IT Pro responsible for configuring, managing and maintaining servers running Windows Server 2016, start with this well-organized and authoritative resource. Inside, you'll find expert insights, tips, tricks and workarounds that will show you how to master Windows Server 2016 in the shortest amount of time possible. During the course of reading this book, you will master a number of complex topics, techniques, commands and functions. Topics discussed in this book include: Planning for Windows Server 2016 and developing a deployment plan Implementing TCP/IP networking and NIC teaming Managing file services and data storage Partitioning and optimizing drives Using TPM and BitLocker Drive Encryption Using Storage Spaces and Storage Pools Configuring file sharing and disk quotas Configuring Shadow Copies and Work Folders Using group policy for administration Configuring and maintaining print services Deploying essential infrastructure services including DHCP and DNS And much, much more!!! Not only will this informative training manual help you become familiar with many new ideas, it'll help you master Windows Server 2016 in the shortest amount of time possible. This is the ideal concise, immediate reference you’ll want with you at all times. Table of Contents Chapter 1. Deploying Windows Server 2016 Chapter 2. Implementing TCP/IP Networking Chapter 3. Data Storage: The Essentials Chapter 4. Partitioning and Optimizing Drives Chapter 5. Using TPM and BitLocker Drive Encryption Chapter 6. Using Storage Spaces Chapter 7. Using RAID Chapter 8. Maintaining Partitions and Drives Chapter 9. Implementing File Sharing Chapter 10. Using Shadow Copies and Work Folders Chapter 11. Managing Permissions and Auditing Chapter 12. Configuring Disk Quotas Chapter 13. Using Group Policy for Administration Chapter 14. Implementing Print Services Chapter 15. Configuring and Maintaining Print Services Chapter 16. Implementing DHCP Chapter 17. Managing and Maintaining DHCP Chapter 18. Implementing DNS Chapter 19. Managing and Maintaining DNS |
| can t open file for writing: Navigating C++ and Object-oriented Design Paul Anderson, Gail Anderson, 1998 This comprehensive, practical tutorial helps programmers understand both C++ and object-oriented design methodologies, so they can write C++ that truly meets its potential. This text incorporates the newer language features, including templates and exception handling, and explains how to apply C++ language constructs, design guidelines, and object-oriented methodology to solve real world problems. |
| can t open file for writing: VB & VBA in a Nutshell: The Language Paul Lomax, 1998 In the tradition of Java in a Nutshell, this book boils down the essentials of VB and VBA, and includes undocumented areas essential to everyday programming. |
| can t open file for writing: Creating Mobile Apps with Xamarin.Forms, Preview Edition Charles Petzold, 2014-09-26 Written by programming legend Charles Petzold and created jointly by Microsoft Press and Xamarin Inc., this Preview Edition ebook is about writing applications for Xamarin.Forms, the new mobile development platform for iOS, Android, and Windows Phone unveiled by Xamarin in May 2014. Xamarin.Forms lets you write shared user-interface code in C# and XAML (the eXtensible Application Markup Language) that maps to native controls on these three platforms. (The final edition of this ebook will be published in the spring of 2015.) This ebook is for C# programmers who want to write applications for the three most popular mobile platforms—iOS, Android, and Windows Phone—with a single code base. Xamarin.Forms also has applicability for those programmers who want eventually to use C# and the Xamarin.iOS and Xamarin.Android libraries to target the native application programming interfaces (APIs) of these platforms. Xamarin.Forms can be a big help in getting started with these platforms or in constructing a prototype or proof-of-concept application. This ebook assumes that you know C# and have some familiarity with the use of the .NET Framework. However, when it describes some C# and .NET features that might be somewhat new to recent C# programmers, the ebook adopts a somewhat slower pace. In particular, the introduction of the async keyword and await operator in Chapter 3 follows a discussion that shows how to do asynchronous programming using traditional callback methods. |
| can t open file for writing: Windows Server 2012 R2 Pocket Consultant Volume 2 William Stanek, 2014-01-15 Portable and precise, this pocket-sized guide delivers ready answers for administering storage, security, and networking features in Windows Server 2012 R2. Zero in on core tasks through quick-reference tables, instructions, and lists. You'll get the focused information you need to save time and get the job done - whether at your desk or in the field. Coverage includes: Managing file systems and drives Configuring storage Data sharing Managing TCP/IP networking Running DHCP clients and servers Optimizing DNS Administering network printers and print services Security, compliance, and auditing Backup and recovery |
| can t open file for writing: Elements of Programming with Perl Andrew L. Johnson, 2000 Many neophyte programmers now begin their careers by learning the metalanguage, Perl. But the books currently available on Perl assume their readers already understand the basics of writing and designing programs--when in fact they do not. The tutorial teaches programming right along with the particulars of Perl syntax, as well as good style and structure and maintainability of the code. |
| can t open file for writing: Fundamentals of Computer Programming and Information Technology J. B. Dixit, 2005-05 |
| can t open file for writing: PROGRAMMING BASICS PRABHU TL, Learning to code is a new skill that is popular these days. It is so much in demand that even high schools have added programming in their curriculum. Programming and coding are often used interchangeably but both are different and you can read about them in this book. With every chore being digitized & becoming smart and automotive with the AI technology, learning to code has become the need of an era. Everything that you can possibly think of can be done using an app or a website from ordering a cab, or food or shopping online to watching movies or even taking a course & gaming skills. With applications being digitized the demand also increases for developers and programmers and hence learning a programming language would be beneficial. This book teaches how to learn the programming language of your choice and the correct way to begin your programming journey. As we know, to communicate with a person, we need a specific language, similarly to communicate with computers, programmers also need a language is called Programming language. Before learning the programming language, let's understand what is language? What is Language? Language is a mode of communication that is used to share ideas, opinions with each other. For example, if we want to teach someone, we need a language that is understandable by both communicators. What is a Programming Language? A programming language is a computer language that is used by programmers (developers) to communicate with computers. It is a set of instructions written in any specific language ( C, C++, Java, Python) to perform a specific task. A programming language is mainly used to develop desktop applications, websites, and mobile applications. Types of programming language 1. Low-level programming language Low-level language is machine-dependent (0s and 1s) programming language. The processor runs low- level programs directly without the need of a compiler or interpreter, so the programs written in low-level language can be run very fast. How to find Nth Highest Salary in SQL Low-level language is further divided into two parts - i. Machine Language Machine language is a type of low-level programming language. It is also called as machine code or object code. Machine language is easier to read because it is normally displayed in binary or hexadecimal form (base 16) form. It does not require a translator to convert the programs because computers directly understand the machine language programs. The advantage of machine language is that it helps the programmer to execute the programs faster than the high-level programming language. ii. Assembly Language Assembly language (ASM) is also a type of low-level programming language that is designed for specific processors. It represents the set of instructions in a symbolic and human-understandable form. It uses an assembler to convert the assembly language to machine language. The advantage of assembly language is that it requires less memory and less execution time to execute a program. 2. High-level programming language High-level programming language (HLL) is designed for developing user-friendly software programs and websites. This programming language requires a compiler or interpreter to translate the program into machine language (execute the program). The main advantage of a high-level language is that it is easy to read, write, and maintain. High-level programming language includes Python, Java, JavaScript, PHP, C#, C++, Objective C, Cobol, Perl, Pascal, LISP, FORTRAN, and Swift programming language. A high-level language is further divided into three parts - How to Learn to Code Before we begin reading further let me remind you that you have chosen a path that demands patience and motivation to never give up in spite of the challenge on the way. Read through and follow the steps below to become a programmer. Focus on Learning Programming Basics It is always suggested to make your fundamentals strong so as to be a pro coder. Learn the basics thoroughly and try your hands on the code by making your own problems and solving them. Stress on the following topics to begin learning as they are common in almost all the languages. Data Types Variables Functions Array or Lists If statements Conditional loops Classes and objects Exception handling Trees, maps, and more. Build your First Project Building your personal project is the best way to analyze and learn what you have learned. Building a project of your choice would give you practical learning experience of the language in much detail as you would come across the implementation of the concepts that you have learned earlier and also learn how to deploy the project to be used by you and all others. Moreover, as you build your projects add it to your profile or your GitHub account, this would help you in the future when you look for a job in development. |
| can t open file for writing: Special Edition Using Visual C++.NET Kate Gregory, 2002 Special Edition Using Visual C++.NET is a comprehensive resource to help readers leverage the exciting new features of Visual C++.NET as well as port their existing skills to the new .NET development environment. The book shows how both Win32 and .NET applications work, not only instructing the reader in the use of Microsoft's Visual C++ wizards, but also showing what the wizards create. A variety of programming tasks from simple dialog boxes to database and Internet programming are included. Because of the new .NET platform developers in any of 17 languages (including Visual C++) will use the same class libraries to construct high-performance applications. SE Using Visual C++.NET will not only cover the new version of the software but also how to get maximum programming results from combining several languages into one project. Related technologies such as XML and XSLT are also covered, along with integrating Visual C++ code with Visual Basic and C# code. |
| can t open file for writing: Raspberry Pi Cookbook Simon Monk, 2022-12-08 If you've started to work with Raspberry Pi, you know that Raspberry Pi's capabilities are continually expanding. The fourth edition of this popular cookbook provides more than 200 hands-on recipes (complete with code) that show you how to run this tiny low-cost computer with Linux, program it with Python, hook it up to sensors and motors, and use it with the internet of things (IoT). This new edition includes new chapters on the Raspberry Pi Pico and machine learning with the Raspberry Pi. These easy-to-use recipes will show you, step-by-step, how to: Set up your Raspberry Pi and connect to a network Work with its Linux-based operating system Program your Raspberry Pi with Python Give your Pi eyes with computer vision Recognize objects from video and sounds using machine learning Control hardware through the GPIO connector Use your Raspberry Pi to run different types of motors Work with switches, keypads, and other digital inputs Use sensors to measure temperature, light, and distance Connect to IoT devices in various ways and automate your home Use the Raspberry Pi Pico microcontroller board with your Raspberry Pi |
| can t open file for writing: Learn AppleScript Hamish Sanderson, Hanaan Rosenthal, Ian Piper, Barry Wainwright, Emmanuel Levy, Harald Monihart, Craig Williams, Shane Stanley, 2010-07-10 AppleScript is an English-like, easy-to-understand scripting language built into every Mac. AppleScript can automate hundreds of AppleScript-able applications, performing tasks both large and small, complex and simple. Learn AppleScript: The Comprehensive Guide to Scripting and Automation on Mac OS X, Third Edition has been completely updated for Mac OS X Snow Leopard. It's all here, with an emphasis on practical information that will help you solve any automation problem—from the most mundane repetitive tasks to highly integrated workflows of complex systems. Friendly enough for beginners, detailed enough for advanced AppleScripters Includes major contributions from expert AppleScripters: Emmanuel Levy, Harald Monihart, Ian Piper, Shane Stanley, Barry Wainwright, Craig Williams, and foreword by AppleScript inventor, William Cook |
| can t open file for writing: Learn C on the Mac David Mark, James Bucanek, 2013-02-01 Considered a classic by an entire generation of Mac programmers, Dave Mark's Learn C on the Mac has been updated for you to include Mac OS X Mountain Lion and the latest iOS considerations. Learn C on the Mac: For OS X and iOS, Second Edition is perfect for beginners learning to program. It includes contemporary OS X and iOS examples! This book also does the following: • Provides best practices for programming newbies • Presents all the basics with a pragmatic, Mac OS X and iOS -flavored approach • Includes updated source code which is fully compatible with latest Xcode After reading this book, you'll be ready to program and build apps using the C language and Objective-C will become much easier for you to learn when you're ready to pick that up. |
| can t open file for writing: The Art of Professional Hacking Anto.Y, 2012-05-08 Hacker is a person who uses his creativity and knowledge to overcome limitations, often in technological contexts. If you ask a random person on the street what a hacker is, they might recall ever seeing the word in connection to some criminal who `hacked' some website and stole for example credit card-data. This is the common image the media sketches of the `hacker'. The somewhat more informed person might think that a hacker is not really a criminal but somebody with a lot of knowledge about computers and security. Of course this second definition is a lot better than the first one, but I still don’t think it catches the essence of what makes one a hacker. First of all, hacking hasn't necessarily got to do with computers. There have been hackers in the Medieval Ages and maybe even in the Stone Ages. The fact that they used other means to express their skills and knowledge doesn't make them less than any hacker in the modern ages. We are just blessed with the fact that at this moment we are all surrounded by technology, a lot of people even are dependent of it. |
| can t open file for writing: Network Programming with Perl Lincoln D. Stein, 2001 A text focusing on the methods and alternatives for designed TCP/IP-based client/server systems and advanced techniques for specialized applications with Perl. A guide examining a collection of the best third party modules in the Comprehensive Perl Archive Network. Topics covered: Perl function libraries and techniques that allow programs to interact with resources over a network. IO: Socket library ; Net: FTP library -- Telnet library -- SMTP library ; Chat problems ; Internet Message Access Protocol (IMAP) issues ; Markup-language parsing ; Internet Protocol (IP) broadcasting and multicasting. |
| can t open file for writing: Perl by Example Ellie Quigley, 2014 Perl by Example, Fifth Edition, is the easiest, most hands-on way to learn Perl. Legendary Silicon Valley programming instructor Ellie Quigley has thoroughly updated and condensed her classic to focus on the applications and skills today's Perl users care about most: from system task automation, data extraction, and testing through legacy code maintenance and CPAN. Quigley illuminates every technique with focused, classroom-tested code examples, detailed explanations, and real program output. She shows the code, the input and output, and provides detailed, line-by line explanations of how the code generates that output. |
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