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Search found 47 results on 2 pages for 'sebi'.

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  • Correct use of Classloader (especially in Android)

    - by Sebi
    I read some documentations about classloaders, but im still not sure where and why they are needed. The Android API says: Loads classes and resources from a repository. One or more class loaders are installed at runtime. These are consulted whenever the runtime system needs a specific class that is not yet available in-memory. So if i understand this correct, there can be many classlaoders which are responsible for loading new classes. But how the system decides which to use? And in which situation should a developer instantiate a new classloader? In the Android API for Intent there is a method public void setExtrasClassLoader (ClassLoader loader) The description says: Sets the ClassLoader that will be used when unmarshalling any Parcelable values from the extras of this Intent. So can i define there a special classloader so that i can pass object with an Intent which are not defined in the receiving activity? An example: If activity A which is located in Project A (in Eclipse) defines an object which i want to send to Activity B in Project B using putExtra of the Intent object. If this object which is send over the Intent is not defined (source code in project B), then there is a NoClassDefFoundException. So can i use the method setExtraClassloader to avoid this exception? If yes, how can i decide which classloader object i have to pass? And how do I instantiate it correctly?

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  • Regex expression in plain english

    - by Sebi
    I'm working on a new Java project and therefore im reading the already existing code. On a very important part of the code if found the following regex expression and i can't really tell what they are doing. Anybody can explain in plain english what they do?? 1) [^,]*|.+(,).+ 2) (\()?\d+(?(1)\))

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  • Best Practice: Software Versioning

    - by Sebi
    I couldn't find a similar question here on SO, but if you find one please link. Is there any guideline or standard best practice how to version a software you develop in your spare time for fun, but nevertheless will be used by some people? I think it's necessary to version such software so that you know about with version one is talking about (e.g. for bug fixing, support, and so on). But where do I start the versioning? 0.0.0? or 0.0? And then how to I increment the numbers? major release.minor change? and should'nt any commit to a version control system be another version? or is this only for versions which are used in a productive manner?

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  • Best practice to hide/encrypt email adress in webpage

    - by Sebi
    I couldn't find a similar question, that's why here it is: Whats the best way to hide or encrypt an email link in a website, so that a crawler can't read it, but the user can nevertheless click it? I don't want to conufse the users by typing the email like this: john (at) mail.com or similar ways. (and i think this kind of links can nevertheless read by crawlers?) I also tried things like that: <script>// <![CDATA[eval(unescape('%76%61%72%20%73%3D%27%61%6D%6C%69%6F%74%72%3A%62%61%40%65%64%61%6E%6F%6C%2E%69%27%3B%76%61%72%20%72%3D%27%27%3B%66%6F%72%28%76%61%72%20%69%3D%30%3B%69%3C%73%2E%6C%65%6E%67%74%68%3B%69%2B%2B%2C%69%2B%2B%29%7B%72%3D%72%2B%73%2E%73%75%62%73%74%72%69%6E%67%28%69%2B%31%2C%69%2B%32%29%2B%73%2E%73%75%62%73%74%72%69%6E%67%28%69%2C%69%2B%31%29%7D%64%6F%63%75%6D%65%6E%74%2E%77%72%69%74%65%28%27%3C%61%20%68%72%65%66%3D%22%27%2B%72%2B%27%22%3E%4F%62%65%72%70%61%72%6C%65%69%74%65%72%3C%2F%61%3E%27%29%3B'))]]></script> but i heard this can also be read by crawler and it isn't really good practices are ther any common approaches?

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  • Cycle in Eclipse

    - by Sebi
    If I open two Java projects in Eclipse which depend on each other, I have to add dependencies between these two projects in the Build Path (Properties - Java build path). This works fine for one way, but why doesn't allow Eclipse to set the dependencies vice versa? The following error message occurs: A cycle was detected in the build path of project 'A' and A cycle was detected in the build path of project 'B' I know what's causing this error but i wonder why exactly this isn't allowed. Thanks.

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  • Is it bad practice to use Reflection in Unit testing?

    - by Sebi
    During the last years I always thought that in Java, Reflection is widely used during Unit testing. Since some of the variables/methods which have to be checked are private, it is somehow necessary to read the values of them. I always thought that the Reflection API is also used for this purpose. Last week i had to test some packages and therefore write some JUnit tests. As always i used Reflection to access private fields and methods. But my supervisor who checked the code wasn't really happy with that and told me that the Reflection API wasn't meant to use for such "hacking". Instead he suggested to modifiy the visibility in the production code. Is it really bad practice to use Reflection? I can't really believe that

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  • How to instantiate a Singleton multiple times?

    - by Sebi
    I need a singleton in my code. I implemented it in Java and it works well. The reason I did it, is to ensure that in a mulitple environment, there is only one instance of this class. But now I want to test my Singleton object locally with a Unit test. For this reason I need to simulate another instance of this Singleton (the object that would be from another device). So is there a possiblity to instantiate a Singleton a second time for testing purpose or do I have to mock it? I'm not sure, but I think it could be possible by using a different class loader?

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  • Shouldn't we ignore IE6 and IE7 users?

    - by Sebi
    Lately I created two webpages with a simple CMS for a a small club and a private person (http://foto.roser.li and http://www.ovlu.li/cms). I dont really understand much of HTML/PHP/CSS and all this web stuff, but it was enough to adapt the stylesheets and add some javascript functions and so on to make the pages to look more or less nice in firefox and IE8. Nevertheles, if you open the pages with IE7 or IE6, particulary the second home page really looks terrible. So what should I do know? I don't have the know-how to adapt the stylesheets so that it looks good at such browsers. However if I check the statistics of the pages, i noticed that almost half of the visitors uses this kind of browsers. I could put much effort in adapting the stylesheets to look good at all browser but while thinking about this I'm asking myself if this is really the best way. If all developers put effort in providing solutions for really old browsers (like e.g. the IE6), then people who use these brwoser dont have any incentives to update their browsers. Naturally, I as a provider of information should present the content in a readable form to my users, but were should i draw the line? I also saw that some users are visiting the pages with even IE5 or IE4... but I really can't think of a way how to adapt the content in a suitable form for these very old brwosers. I would appreciaed any hints how to handle this balancing between putting much effort into developing a version for very old brwosers and the necessity of providing content to all users which want to visits my homepages. Im also interested in your thoughts about they idea that putting effort in adapting the content for old browsers prevents the users from updating their browsres because they don't see any need.

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  • CMS Layout Problem

    - by Sebi
    I made a small page (http://www.ovlu.li) using CMS Made Simple (http://www.cmsmadesimple.org/). It looks more or less okay in all browser, but the problem is, if a resize the window to a smaller size, sometimes the layout of the subnavigation layer is destroyed. Instead of getting smaller, all the elements are ordered more or less randomly. Any hints why?

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  • Why does this JavaScript destroys my layout in Internet Explorer?

    - by Sebi
    I'm using a small CMS for a small site (http://www.ovlu.li/cms/). There I include a JavaScript on the first site to open an image in a popup: <script type="text/javascript"> function pop(file) { helpwindow = window.open(file, "Vaterland", "width=600, height=796", "directories=no", "toolbar=no", "location=no", "status=no", "menubar=no", "resizable=no"); helpwindow.focus(); return false; } </script> This works fine in FireFox, Chrome and Safari, but unfortunately, in Internet Explorer this script totally destroys the layout of the site where it is contained. Nevertheless it works. And all other sites are also working correctly. Any hints?

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  • Invoking activity that is located in a jar

    - by Sebi
    hi i tried to invoke another activity from my main acitivty which is located in a jar file. Class clazz = Class.forName(getPackageName() + "." + getActivityName()); startActivity(new Intent(this, clazz)); Im doing it this way because i only know the name of the class. This works fine but unfortunately, all resource files can't be found while loading the activity from the jar file. at the first occurence of loading a res file there is a ResourceNotFoundException: 04-30 11:18:46.944: ERROR/AndroidRuntime(1749): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f040006 any hints for that? thanks!

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  • Whats the most useful programming language?

    - by Sebi
    I know this question was here a lot of times and can't be answered at all, but im not looking for a single name, but rather for an advice in my situation. I learned programming with Java and now I'm developing in Java for more or less 5 years (at the university) and I thinks my programming skills their are really ok/average. I have also small experience in C/C++ and C#. Now I have some spare time and I'd like to learn a new language or deepen the knowledge of Java/C/C++. But how to choose the right language to learn? I'd like to learn a language which will be usefull in the future concerning working in a software development business? I know there is no single answer, but I'm sure you could mention some languages that are more usefull than others.

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  • Android API Target Level 5 and 6 for Ubuntu

    - by Sebi
    Today i installed Ubuntu 10.4 and Eclipse Galileo. Then I downloaded the Android SDK and tried to install all packages via the Android SDK Tools. But unfortunately, only the Target Levels 3, 4, 7 and 8 were available. API Level 5 and 6 are missing. Does anybody know the reason for this? I already did a Google search and there seems to be nobody with the same problem. I also tried to restart it and nothing happens, the API Levels are still missing.

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  • How to make a scrollable widget?

    - by Sebi
    As far as I have read in the Internet and official documentation, it isn't possible to make a scrollable widget. Also all my tries failed. I even tried to subclass TextView to implement my own scroll method, but nothing worked. Are there any ways to achieve that? Btw.... there are solutions if you use for example htc sense or home desktop ++, but i want to make it available to other users which don't use this

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  • Would you tell your prospective boss your SO username?

    - by Sebi
    Today I met a friend who is also using stackoverflow. He had a job interview today at a small business and during the interview, the prospective boss asked him how he assures that he's alawys up-to-date concerning technical questions and what he's doing to seek for a solution for a problem he can't solve by its own. Besides some magazines, journals, books and blogs my friend also mentioned stackoverflow. The prospective boss seems very interested about that and asked him if he could tell him his username. It appears that was the most difficult during the whole interview ;) Would you tell your prospective boss your username? An the pro side one can mention that the boss sees that you're very involved in your business and community but on the other hand it is a really private thing and you cant post anymore in thread like "what was the worst working environment?" My friend circumnaviagted this question by a rather lame answer (more or less: i use autologin, thats why i have to check the username later at home, ill maybe send you an email)

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  • Learn another useful programming language [closed]

    - by Sebi
    I know this question was here a lot of times and can't be answered at all, but im not looking for a single name, but rather for an advice in my situation. I learned programming with Java and now I'm developing in Java for more or less 5 years (at the university) and I thinks my programming skills their are really ok/average. I have also small experience in C/C++ and C#. Now I have some spare time and I'd like to learn a new language or deepen the knowledge of Java/C/C++. But how to choose the right language to learn? I'd like to learn a language which will be usefull in the future concerning working in a software development business? I know there is no single answer, but I'm sure you could mention some languages that are more usefull than others.

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  • How to learn a new programming language? And how to choose the appropriate language?

    - by Sebi
    Unfortunately my last question was closed, so I reformulated the question: I know this question was here a lot of times and can't be answered at all, but im not looking for a single name, but rather for an advice in my situation. I learned programming with Java and now I'm developing in Java for more or less 5 years (at the university) and I thinks my programming skills their are really ok/average. I have also small experience in C/C++ and C#. Now I have some spare time and I'd like to learn a new language or deepen the knowledge of Java/C/C++. But how to choose the right language to learn? I'd like to learn a language which will be usefull in the future concerning working in a software development business? I know there is no single answer, but I'm sure you could mention some languages that are more usefull than others. And what's the best way to learn such a language efficiently (bearing in mind that one has already learned some other languages)? Just doing tutorials? Or trying to implement a project? Trying to move a Java project to the new language?

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  • How does getAltitude() of Android GPS Location Works

    - by Sebi
    HI I tried to implement a simple GPS tracker. Therefore is used lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE); lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, this); Then i used the public void onLocationChanged(Location location) { method to read the altitude of my current location. But i dont really know what Location.getAltitude() returns. The document says it returns the altitude. But is this in meters? or feets? if i put the phone on the desk next to me, this value changes between 500 and -500?? How does this really work???

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