I was wondering if anyone knows a good tutorial that explains how to use SQLite with libgdx. All the ones I have found don't explain it well and I'm having trouble figuring out how to use it. So if you know of one that explains everything decently please give me the link to it. Thanks in advance.
Notice that the extensions available won't work for multi-platform, at max you'll be able to support Android and Desktop. My advise is for you to create your own classes for methods for accessing info stored as files on the device trough the LibGDX File API. You won't get to use SQL and it will certainly take longer but you'll get try multi-platform support (if that is what you're looking too of course).
https://code.google.com/p/libgdx-users/wiki/SQLite
Try this, although it is rather a suggestion of implementation rather than a full blown tutorial.
A Libgdx user proposed an SQLite extension several months ago. Its definitely a work-in-progress, but might be a good place to get some ideas or borrow some code from: https://github.com/libgdx/libgdx/pull/222
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I have been looking on the internet for days, and trying to look through the javadocs, but I cannot find the answer anywhere.
How can I get connected devices through USB by using the java API. I do not want to use any libraries as they aren't reliable enough for the purpose I am using it for.
How do USB java libraries do it, what Java API does it use to connect to USB devices?
I know it may be complicated to actually work with it, but it will still be very useful.
I did seen the use of File.getRoots(), but it just gives storage, like C:/, H:/, etc. I want to be able to communicate with any USB device, like mouses, keyboards, custom hardware, etc.
Also include examples of code as well. It helps a lot in understanding it better. Make sure to also get to the point, it helps by saving time.
Update: I still have no clue on how to start.
Update 2: I found something with javax.usb, is it part of the java api, when I do say java api, I mean stuff that is already with java and where you don't need to download anything but the JRE. I am not sure as if it was, I would think someone would of mentioned something about it here. Going to try to find more into it. I can't find anything on the official java-14 docs, so guessing not.
Update 3: Haven't found an answer yet. Everything is redirecting to usb4java, which has not been updated in a couple years, 3 years in fact. Which is actually one of the main reasons I don't want to use any external library as it might get abandoned and will cause some issues with my code in the future. Hopefully someone can help soon, I desperately need an answer and the internet is no help and everything seems to redirect to libraries, which again, I don't want.
Update 4: Still on the hunt for an answer, still haven't found anything useful.
Update 5: I am seeing that I have tons of uses to do this, but don't know how to do it from scratch.
Update 6: Still on the hunt for an answer. I have been looking hard but found nothing. Looking through the USB4JAVA library code has been proven to not help much. But, I am going to keep looking, hopefully I find something soon. Found something though, it's libusb, a C program that USB4JAVA uses. Even though I won't use Java libraries, I might just use C libraries for Java, if that makes sense.
Now I am researching how to implement email-based sing-up in Play Java. However, I couldn't get any useful information, so can anyone tell me the information? In other words, can anyone show some links or the easy example of it?
This is the example written in Scala, but unfortunately I can't understand well, I am not familiar with Scala...
Any comment is welcome.
EDIT: Some people dislike this question. Maybe they think this is not a good question because I am supposed to reach some answers of this question.
However, in fact there seems to be no information that help me build email-based authentication when using Java. In Play Scala, you have many options. But I want to know how to realize it in Java, not Scala. So, this question is so meaning for some people who try to build a web app in Play Java.
You can do this using the Play Authenticate library: http://joscha.github.io/play-authenticate/
I am trying the application program using json.what is the uses of json_decode in android.How can i use the json_decode in my application? is it possible means tell some idea.
I think you'd be best to ask on a forum like App Dev Forum or similar as this is not the sort of question we like to answer on StackOverflow. You really need to research these things yourself or give us a code snippet for us to check out. This is more of a strictly programming related community.
It would be MUCH easier if you used GSON. It automatically maps JSON to your classes.
Ever since I started playing around with Scala, I have had one big question concerning the Java API: why does Oracle keep the same old HTML page with "frameset" tags and no search function at all? It looks like they haven't made it to the Web 2.0...
The Scala API documentation on the other hand, while not the best website in the web history, is several orders of magnitude more usable.
Anyways, if anybody knows why that is and, more importantly, if there exists a Java API documentation with a better interface, please let me know!
Recently, for Java 7, JavaDoc was improved so it could use custom CSS. Here are the first results: http://download.java.net/jdk7/docs/api/. The work continues and I think we'll see more when new updates come out. I do agree that ScalaDoc is superior, but they didn't have to deal with 15 years of legacy.
Javadocs provides the output in that format and its published at that address, I guess no one really saw the need for improvement, but now that you mention it, it makes for an interesting side-project. I googled around to find if there was any "better" interface but no luck.
You could run javadoc -h to see what extra options are available if you want to re-generate the javadocs. Some interesting ones are to provide custom header/footer and linking to the source, but nothing to the effect that you are asking.
Those HTML pages were made using the Javadoc tools, a standard way to build documentation in Java.
I don't know if there are other webpages with a better formatting of the API, but if it helps you with anything, and you are using an IDE and the SDK, you can see the source code for most of the files there.
JavaDoc was designed to be the lowest common denominator. Virtually any web browser can display it, even without JavaScript support.
If you are looking for quicker access and search capabilities, you can access JavaDoc from within an IDE such as Eclipse.
I'm writing a GUI with Swing and I'm trying to integrate a microsoft chm help file. The problem is, I don't even know where to start. Can anyone recommend a library/tutorial as a starting point for a project like this? Specifically, I'd like to know about how to open/view specific pages or inidices (I don't even know exactly what the terminology for .chm files is) from java.
Thanks!
I actually decided to go in a different direction for this project in particular (one that doesn't involve a MS help file), but here's a couple of helpful links I found in case anyone else runs into this issue:
Wikipedia article on MS help format
jchm: a java library for using chm files. I didn't investigate it too thoroughly, but it's a starting point.