Search Results

Search found 6375 results on 255 pages for 'colon syntax'.

Page 105/255 | < Previous Page | 101 102 103 104 105 106 107 108 109 110 111 112  | Next Page >

  • Which numeral systems are useful in computer science?

    - by authchir
    I am wondering which numeral system different programmers are using, or would use if their language has support for them. As an example, in C++ we can use: Octal by prefixing with 0 (e.g. 0377) Decimal by default (e.g. 255) Hexadecimal by prefixing with 0x (e.g. 0xff) When working with bitmask, I am using hexadecimal but would sometimes want to be able to express binary numbers directly. I know some programming language support it with 0b syntax (e.g. 0b11111111). Is there any other numeric system useful in some computer science domain (e.g. cryptography, codecs, 3D graphics, etc)?

    Read the article

  • How do you navigate and refactor code written in a dynamic language?

    - by Philippe Beaudoin
    I love that writing Python, Ruby or Javascript requires so little boilerplate. I love simple functional constructs. I love the clean and simple syntax. However, there are three things I'm really bad at when developing a large software in a dynamic language: Navigating the code Identifying the interfaces of the objects I'm using Refactoring efficiently I have been trying simple editors (i.e. Vim) as well as IDE (Eclipse + PyDev) but in both cases I feel like I have to commit a lot more to memory and/or to constantly "grep" and read through the code to identify the interfaces. As for refactoring, for example changing method names, it becomes hugely dependent on the quality of my unit tests. And if I try to isolate my unit tests by "cutting them off" the rest of the application, then there is no guarantee that my stub's interface stays up to date with the object I'm stubbing. I'm sure there are workarounds for these problems. How do you work efficiently in Python, Ruby or Javascript?

    Read the article

  • Are trivial protected getters blatant overkill?

    - by Panzercrisis
    Something I really have not thought about before (AS3 syntax): private var m_obj:Object; protected function get obj():Object { return m_obj; } private var m_str:String; protected function get str():String { return m_str; } At least subclasses won't be able to set m_obj or m_str (though they could still modify m_obj). Is this just blatant overkill? I am not talking about doing this as opposed to making them public. I am talking about doing this instead of just making the variables themselves protected. Like this: protected var m_obj:Object; //more accessible than a private variable with a protected getter protected var m_str:String; //more accessible than a private variable with a protected getter

    Read the article

  • Recommendation for Improving Programming Skills

    - by Moaz ELdeen
    I'm 25, I know C++ syntax since 9 years.. but It seems that I have copied so much code, and I didn't learn that much and didn't solve a lot of algorithms in my own. Currently I'm working for computer vision programmer as a junior and I have difficulity of doing algorithms like blob tracking or object tracking, writing algorithms like KNN, Quadtree,..etc. I don't know what to do, or what to improve, I tried to write asteriods game, I have finished it, and here you can watch it https://www.youtube.com/watch?v=jw0L4aCB4TU What should I do more to enhance my skills ?

    Read the article

  • Markup format or script for data files?

    - by Aaron
    The game I'm designing will be mainly written in a high level scripting language (leaning towards either Lua or Squirrel) with a C++ core. In addition to scripts I'm also going to need different data files. Many data files will be for static information such as graphical assets and monster types. I'd also want to create and update data files at runtime for user information like option settings and game saves. Can I get away with using plain script files (i.e. .lua or .nut files) for my data files, or is it better to use dedicated markup formats like XML or YAML? If I use script files, loaded separately from my true scripts, then I wouldn't need an extra library to read those files. Scripting languages like Lua also have table syntax that lend themselves towards data definition. On the other hand I'd have to write my own schema check code. These languages also don't seem to support serialization "out of the box" like the markup format libraries do.

    Read the article

  • How do I become a programmer and not some guy that can type some C?

    - by Phoxxent
    From what I understand, programming has a lot more to it than learning syntax, that it involves an understanding of what happens under-the-hood and even more. Currently, I am just a guy that can pump out a few loops in Python or C and maybe make a small-scope Zork clone as the hight of skill. So, what can I do to become an actual programmer? How can I find out what I need to know and learn it? I know this has been vaguely asked before, but I kind of want an answer of how as opposed to the whats that I have seen. Would it be nice to know how real programmers define being a programmer? yes. Is that going to actually help me (or anyone else) learn what they need to learn? no. (well, maybe.)

    Read the article

  • How to Quickly Resize, Convert & Modify Images from the Linux Terminal

    - by Chris Hoffman
    ImageMagick is a suite of command-line utilities for modifying and working with images. ImageMagick can quickly perform operations on an image from a terminal, perform batch processing of many images, or be integrated into a bash script. ImageMagick can perform a wide variety of operations. This guide will introduce you to ImageMagick’s syntax and basic operations and show you how to combine operations and perform batch processing of many images. The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos

    Read the article

  • Draggable & Resizable Editors

    - by Geertjan
    Thanks to a cool tip from Steven Yi (here in the comments to a blog entry), I was able to make a totally pointless but fun set of draggable and resizable editors: What you see above are two JEditorPanes within JPanels. The JPanels are within ComponentWidgets provided by the NetBeans Visual Library, which is also where the special border comes from. The ComponentWidgets are within a Visual Library Scene, which is within a JScrollPane in a TopComponent. Each editor has this, which means the NetBeans Java Editor is bound to the JEditorPane: jEditorPane1.setContentType("text/x-java"); EditorKit kit = CloneableEditorSupport.getEditorKit("text/x-java"); jEditorPane1.setEditorKit(kit); jEditorPane1.getDocument().putProperty("mimeType", "text/x-java"); A similar thing is done in the other JEditorPane, i.e., it is bound to the XML Editor. While the XML Editor also has code completion, in addition to syntax coloring, as can be seen above, this is not the case for the JEditorPane bound to the Java Editor, since the JEditorPane doesn't have a Java classpath, which is needed for Java code completion to work.

    Read the article

  • Should you document everything or just most?

    - by TheLQ
    It seems a bit of a controversial subject to document everything, including the "JavaBean" syntax of getters and setters for fields: People say its needlessly long and repetitive breaking DRY (don't repeat yourself), that the naming convention should explain everything, and it clutters code/documentation. Sometimes those arguments work. But other times, you end up with this: Above is common to open source projects that do boldly follow those principles. Your left with entirely useless documentation. That doesn't explain anything about whats going on underneath, the possible effects, or even what the expected value is (could it be null or never null? I don't know, the Javadoc doesn't tell me). So when should I document? Do I document everything even if it occasionally clutters code? Or do I document nothing since in my eyes its "obvious"?

    Read the article

  • What is use of universal character names in identifiers in C++

    - by Jan Hudec
    The C++ standard (I noticed it in the new one, but it did already exist in C++03) specifies universal character names, written as \uNNNN and \UNNNNNNNN and representing the characters with unicode codepoints NNNN/NNNNNNNN. This is useful with string literals, especially since explicitly UTF-8, UTF-16 and UCS-4 string literals are also defined. However, the universal character literals are also allowed in identifiers. What is the motivation behind that? The syntax is obviously totally unreadable, the identifiers may be mangled for the linker and it's not like there was any standard function to retrieve symbols by name anyway. So why would anybody actually use an identifier with universal character literals in it? Edit: Since it actually existed in C++03 already, additional question would be whether you actually saw a code that used it?

    Read the article

  • New insights I can learn from the Groovy language

    - by Andrea
    I realize that, for a programmer coming from the Java world, Groovy contains a lot of new ideas and cool tricks. My situation is different, as I am learning Groovy coming from a dynamic background, mainly Python and Javascript. When learning a new language, I find that it helps me if I know beforehand which features are more or less old acquaintances under a new syntax and which ones are really new, so that I can concentrate on the latter. So I would like to know which traits distinguish Groovy among the dynamic languages. What are the ideas and insights that a programmer well-versed in dynamic languages should pay attention to when learning Groovy?

    Read the article

  • How to make a non-english clone of CoffeeScript?

    - by Ans
    I want to make a non-english programming language that is identical to what CoffeeScript is to JavaScript. What I mean is that I don't want to build my own design or syntax. Just want to have a non-english programming language that compiles to JavaScript. I want to follow everything CoffeeScript fellows so I don't really want to make any design decisions. For example: This is coffeescript: number = 42 opposite = true number = -42 if opposite I want my language to be something like: ??? = 42 ??? = ???? ??? = -42 ??? ??? that get compiled to: var number, opposite; number = 42; opposite = true; if (opposite) { number = -42; }

    Read the article

  • Hilfe?! Wie funktioniert mein Werkzeug?

    - by DBA Community
    Es gibt eine ganze Reihe an Oracle Tools für die Oracle Datenbank, die per Command Line Interfaces bedient werden können: Von RMAN über ADRCI, vom SQL*Loader über Export/Import, von SRVCTL über SQL*Plus. Und wie es sich für ordentliche Werkzeug gehört, besitzt auch (fast) jedes einzelne von ihnen eine eigene Hilfestellung. Wobei die Betonung eindeutig auf "eigene" liegt. Auch der ungeübte Benutzer wird sehr schnell merken, dass Oracle sich hier wohl nie so wirklich Gedanken darüber gemacht hat, die Hilfefunktionen zu vereinheitlichen - außer dass die Hilfe mehr oder weniger hilfreich ist. Die wohl interessanteste Ausprägung dieser Hilfefunktion ist hier sicherlich der RMAN, dessen umfangreiche Syntaxhilfe nur schwer zu erhalten ist - es sei denn man vertippt sich absichtlich. Solange man alles richtig macht (oder eben falsch, aber leider mit der richtigen Syntax) ist RMAN kein Hinweis über seine umfangreichen Syntaxchecker zu "entlocken". Wie man bei den vielen unterschiedlichen Oracle Tools die hilfreichen Informationen bekommt, damit beschäftigt sich unser Tipp. Weiter zum Tipp

    Read the article

  • What is the best way to become a professional in PHP and Website Building?

    - by Mr.TAMER
    I would like to become a professional in php, I have learned nearly all about the language syntax and concepts and I have a good knowledge in C and C++, which made it easier to become familiar with PHP. (Of course, I learned MySql too.) But I don't feel like being able to build even a little good website of my own! It looks like PHP is all about knowing lots of functions and using them, while in fact I don't think it's like that, is it? How can I become a professional in PHP and Website Building? I would do anything and spend whatever amount of time required for that. EDIT I've also a very good knowledge in HTML and a normal knowledge in CSS and JavaScript. Sorry for not mentioning that, I just thought it was implicitly included.

    Read the article

  • Java dev learning Python: what concepts do I need to wrap my head around?

    - by LRE
    I've run through a few tutorials and written some small projects. I'm right in the middle of a small project now infact. All is going well enough thanks in no small part to Uncle Google (who usually points me to Stackoverflow ;-) Several times in the last few days I've found myself wondering "what am I missing?" - I feel that I'm still thinking in Java as I write in Python. This question over at StackOverflow is full of tips about what resources to read up on for learning Python, but I still feel that I'm a Java dev with a dictionary (pun unintended) to translate into Python. What I really want to do is refactor my head to be able to write Pythonic Python instead of Java disguised as Python (not that I want to loose my Java skills). So, the crux of my question is: what concepts does a Java dev really need to learn to think Pythonic? This includes anything that needs to be un-learnt. ps: I consider language syntax to not be particularly relevant to this question.

    Read the article

  • GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives

    GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives Speaker: Chris Ramsdale Track: Cloud Computing Time slot: C [12:05 - 12:50] Room: 1 Level: 151 If you're like the rest of us, at some point in your web app development you've wondered if there was an easier solution. One that includes built-in debuggers, code refactoring, reliable syntax highlighting, etc. After all, why should the server-side and desktop programmers get all of the good tools? The good news is that with Google Web Toolkit (GWT) you do have access to these tools. And in this session, Chris Ramsdale will get you up and running with GWT, including what it is, how it works, and deeper dives into generators, native Javascript interop, and compiler optimizations. From: GoogleDevelopers Views: 1 0 ratings Time: 35:02 More in Science & Technology

    Read the article

  • VirtualBox and Ubuntu Mount Error

    - by skaz
    I have Ubuntu 10 as the guest OS on a Windows 7 machine. I have been trying to setup shares through VirtualBox, but nothing is working. First, I create the share in VirtualBox and point it to a Windows folder. Then I try to mount the drive in Linux, but I keep getting /sbin/mount.vboxsf: mounting failed with the error: Protocol error I have read so many solutions to this, but none seem to work. I have tried: Using the mount.vboxsf syntax Reinstalling VBox additions Rebooting Enabling and trying as root account Any other ideas? In case I am doing something dumb, here are more details: I made a share called "Test" in VBox Shared folders. Then I made a directory in ubuntu named "test2". Then I tried to execute this command: sudo mount -t vboxsf Test /mnt/test2 Thank you!

    Read the article

  • Choice of node.js modules to demo flexibility

    - by John K
    I'm putting together a presentation to talk about and demo node.js to client-side JavaScript developers. The language concepts and syntax are not an issue for them, so instead I'd like to get right into things and show off node's abilities that differ from client-side scripting. There are numerous modules available in the NPM registry and many people have much more experience with the registry than I do. I'm looking for a selection of node modules based on recommendations from your experience that show a variety of uses for node that are practical, broadly useful and can be demonstrated with a small code sample without requiring much domain knowledge on behalf of the audience. Neat and impressive is good too - I can throw in a couple of shock and awe items for cool factor. To be fair, top-voted answers will get most consideration for inclusion. My hope is this will result in a well-rounded demonstration of node technology.

    Read the article

  • What's the best platform for blogging about coding? [closed]

    - by timday
    I'm toying with starting an occasional blog for posting odd bits of coding related stuff (mainly C++, probably). Are there any platforms which can be recommended as providing exceptionally good support (e.g syntax highlighting) for posting snippets of code ? (Or any to avoid because posting mono-spaced font blocks of text is a pain). Outcome: I accepted Josh K's answer because what I actually ended up doing was realizing I was more interested in articles than a blog style, getting back into LaTeX (after almost 20 years away from it), using the "listings" package for code, and pushing the HTML/PDF results to my ISP's static-hosting pages. (HTML generated using tex4ht). Kudos to the answers mentioning Wordpress, Tumblr and Jekyll; I spent some time looking into all of them.

    Read the article

  • Jump into Android or learn Java basics first?

    - by daniels
    I am quite proficient in C and know some C++, but never touched Java. Recently I got an idea for an app which I think has potential, and I want to develop it. I am planning to go Android first, cause it doesn't require a mac/iPhone. So my question is: can I go straight to learning Android development, picking up the Java syntax as I go along and need it (after all I don't think it's much different from C/C++), or should I take a couple of weeks to learn the basics of Java first and then start with Android development?

    Read the article

  • Are there any specific workflows or design patterns that are commonly used to create large functional programming applications?

    - by Andrew
    I have been exploring Clojure for a while now, although I haven't used it on any nontrivial projects. Basically, I have just been getting comfortable with the syntax and some of the idioms. Coming from an OOP background, with Clojure being the first functional language that I have looked very much into, I'm naturally not as comfortable with the functional way of doing things. That said, are there any specific workflows or design patterns that are common with creating large functional applications? I'd really like to start using functional programming "for real", but I'm afraid that with my current lack of expertise, it would result in an epic fail. The "Gang of Four" is such a standard for OO programmers, but is there anything similar that is more directed at the functional paradigm? Most of the resources that I have found have great programming nuggets, but they don't step back to give a broader, more architectural look.

    Read the article

  • Enzo Backup for SQL Azure Beta Released!

    - by ScottKlein
    Blue Syntax is happy to announce the release of their SQL Azure database backup product! Enzo Backup for SQL Azure offers unparalleled backup and restored functionlity and flexibility of a SQL Azure database. You can download the beta release here: http://www.bluesyntax.net/backup.aspx With Enzo Backup for SQL Azure, you can: Create a backup blob, or a backup file from a SQL Azure database Restore a SQL Azure database from a backup blob, or a backup file Perform limited backup and restore of SQL Server databases (see details) Run backups entirely in the cloud using a remote agent Backup a single schema of a database Restore specific tables only Copy backup devices from on-premise to the cloud Use a command-line utility to perform backup operations Perform transactionally consistent backups for SQL Azure Please download it and provide us your feed back!

    Read the article

  • Why should I declare a class as an abstract class?

    - by Pied Piper
    I know the syntax, rules applied to abstract class and I want know usage of an abstract class Abstract class can not be instantiated directly but can be extended by other class What is the advantage of doing so? How it is different from an Interface? I know that one class can implement multiple interfaces but can only extend one abstract class. Is that only difference between an interface and an abstract class? I am aware about usage of an Interface. I have learned that from Event delegation model of AWT in Java. In which situations I should declare class as an abstract class? What is benefits of that?

    Read the article

  • Reasons for Pair Programming

    - by Jeff Langemeier
    I've worked in a few shops where management has passed the idea of pair programming either to me or another manager/developer, and I can't get behind it at all. From a developer stand-point I can't find a reason why moving to this coding style would be beneficial, nor as a manager of a small team have I seen any benefit. I understand that it helps on basic syntax errors and can be helpful if you need to hash something out, but managers that are out of the programming loop seem to keep seeing it as a way of keeping their designers from going to Facebook or Reddit than as a design tool. As someone close to the development floor that apparently can't quite understand from a book tossed my way or a wiki page on the subject... from a high level management position, what are the benefits of Pair Programming when dealing with Scrum or Agile environments?

    Read the article

  • When to reply 400 Bad Request

    - by KajMagnus
    According to www.w3.org, a Web server should reply with status code 400 Bad Request if: "The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications" Does that mean only request that violates some HTTP spec? Or does it include a request that my particular Web app thinks is broken? When would you reply 400? For example, if my Web app expects a query string to always include a "function=..." parameter, would you reply code 400 Bad Request or 403 Forbidden? (403 means that "The server understood the request, but is refusing to fulfill it.")

    Read the article

< Previous Page | 101 102 103 104 105 106 107 108 109 110 111 112  | Next Page >