On the Java API, I see references to packages named "edu.mit.sketch.geom." I'm looking for some advanced geometry libraries (mainly collision interpretation), and after a brief overview of the methods contained the package is looking really good, and I'd like to try it out.
However, I can't find any downloads. It doesn't appear to be in the standard Java library, and I'd like to package it as a jar in my project, but a few Google searches return references to the package but no download.
Does anyone know where I can get it?
I Google'd around a bit and the only place I could find what looks like the toolkit you want was on the handouts page of the 6.893 course at MIT: direct link; there doesn't seem to be a project site, at least, not a public one.
Related
This is my first StackOverflow question, and I'm also a Grade 12 student, so apologies if it is a stupid one - feel free to let me know if it is, however, after numerous hours searching the internet, I can't find an answer to this.
this is not homework help.
Background
I am currently writing a program in Netbeans that will deal with large COVID datasets, and I'm looking to use some external libraries to make operations easier. The ones I've looked at are
https://github.com/jtablesaw/tablesaw and https://github.com/nRo/DataFrame.
However, I have only ever used "Java with Ant", and both of these GitHub's only mention using the library through Maven dependencies in the pom.xml file. I have never used Maven, and I am very unfamiliar with Build Tools in general. As when I was introduced to Java, my teacher instructed me to use Java with Ant. That being the case, any time I have used an external library before I have simply added the .jar files into my library folder and used
import foo.bar; or import foo.*; to use the libraries.
My question
Is there a way for me to use either of these libraries without switching build tools? For example, download the source and make the .jar's in a way that isn't overly tedious, so that I can use the libraries the same way I am used to? Or, perhaps something I'm missing that allows me to download them in that format? If not, seeing as almost every Github library I find instructs me to use it through Maven dependency, should I stop using Java with Ant altogether and start learning how to write programs using Maven?
Any insight is greatly appreciated. If this has already been answered, feel free to link the answer and sorry for cluttering up the forum. Thanks.
From one of the Maven websites you can download the libraries and use them as normal. First find the artifact page, for example using mvnrepository.com as shown below, or you could use the https://search.maven.org/:
Find the relevant page by searching for the artifact, then once there you can choose the version:
Then click on "View all" to see the artifact jar files:
Then lastly right-click the file you need and choose save:
I just started Android Development yesterday and just finished with my first Activity. On running it, I'm getting errors like
**Error:(4, 37) error: package android.support.design.widget does not exist**
As I never post without it, I've already done plenty of searching on this. Basically, what I've understood is that it couldn't find that Widget Package on my PC. So, do I have to download it? If yes, then how?
People on internet had similar problem with Packages and almost every post has different answer to this. Some say change your Gradle File others say Update your Studio (have done it).
Any kind of explanation or bit of knowledge with the solution would be highly appreciated. I'm a kind of geek who want to get concepts and basics clear. So, it would be great if you include the reason and technicality behind this too with your answer. Thanks. :)
It's a design library for Android apps development and as #Dominique pointed have a look at that page and copy paste that compile 'com.android.support:design:22.2.0' line in your project gradle file and press the sync button. Your project will sync in a few moments and the design library will be downloaded. Now you can use this library and there won't be any errors.
No, in Java "package" is not a "library" or a "piece of software" (like it is in some other languages). Package is what classes belong to - you might think of packages as directories containing Java files (it is a simplification, but it works). In Java libraries are packaged into (usually) "jars" (those jars usually contain classes divided into packages), so what you need to download is "jar".
So, first thing you need to check is: what library contains the package, and configure your IDE accordingly. The package in question belongs, I think to the so called android support library, which you can install using the SDK tool.
I am trying to develop an application which predominantly needs to do the exact thing as this as explained here.
However i am not able to find the jar file needed to add in the build classpath inside eclipse which lets me import com.larmor.opencv.MatchTemplate.
Please direct me as to where I can find the required resource.
You can find the jar here(But look like Link is not working) http://sourceforge.net/projects/jmatchtemplate/files/jmatchtemplate/Version%200.5%20beta/JavaOpenCVMatchTemplate_v0.5b_win32.zip/download but this project is look like no updates and may be closed ..
Better you can use https://code.google.com/p/javacv/
Here are the examples https://github.com/bytedeco/javacv-examples
One post with example https://imiloainf.wordpress.com/2012/09/17/javacv-example/
The library is downloadable from here
Though a Java novice, I managed to import plain text from the clipboard (sourced in Excel). It looks like the ClipboardContent class would allow me to import formatted text (html, xml...) but my attempts so far always result in "class not found" for any reference to ClipboardContent.
I suspect there's an import (or full reference) that will fix this but my references and on-line searches have not been fruitful so far.
I'll appreciate any clues I can get.
Java has some pretty great documentation online.
here is where you can find anything about that you could need that has to do with basic java's classes. I recommend going here using a ctrl+F for whatever class you need and click on it. on that page it will give you everything you need to know about it.
javafx clipboardcontent api
Make sure you import "javafx.scene.input.ClipboardContent" (assuming this is what you need).
Just a FYI - you can run into cases were you find similar or identical named classes in other packages. If you are using Eclipse IDE, you can hover over an class object and it will provide you a hint on where to import it from if Eclipse has those dependencies. If it doesn't have it, then you will need to add that dependency (like a jar file) and add it as part of your library.
I'm wondering if there is a website with like a list of java libraries/jars where you can browse around and see if theres something you could use. like when you make your own program which then contains lots of useful stuff.
Sort of like a website where people share their code, for public use.
SourceForge
Freecode (Freshmeat)
Google Code
github
Java.net
http://mvnrepository.com - if you know jar name or package name. it will provide you available versions and pom/ivy/gradle coordinates for copy/paste.
http://findjar.com/ - helps you to find jar containing this f*%^ing class nobody knows about (and then you can search mvnrepository to look if it is available for maven build - if not, the best is just ignore this library as this is probably of low quality or not yet released to public properly)