This is a pretty standard way to deploy Java applications, but it has a few downsides: it requires users to have Java installed and their file associations configured correctly. jar files that other people can run or use as a library. jar file at the location you specified, and you can now send that file to other people! Platform Specific Executables jar file using an archive manager or the jar tf command.īut for now, just leave it as the default and click the Finish button. If you want to see what all of these options do, don’t be afraid to just try it and see what happens. The third option is closer to how it works when using the command line to create a. jar file that you can double-click to run, even if it uses library. In 99% of cases, the first two options both look the same from the user’s perspective: you get a. jar files copies them into a directory next to the generated. Packaging the libraries copies the library.Extracting the libraries copies the files from inside the library.jar files that have been added to your project’s classpath. The Library handling options tell Eclipse how to handle any library. The Launch configuration is your main class, and the Export destination is the location and name of the. If you choose Runnable JAR file, the next screen lets you specify several options: jar file that executes your code when you double-click it. Choose Runnable JAR file if you want to create a runnable.jar file that doesn’t run when you double-click it. Choose JAR file if you want to create a library.In that, expand the Java directory and choose either JAR file or Runnable JAR file: jar file, right-click the project name, and then click the Export. Mostly just notice that the Package Explorer shows the same directory hiearchy we used above. Note that this is just an example, so don’t pay too much attention to the code. Here is the same type of project setup in Eclipse: zip file and including a script that runs your program instead. In this case you might consider packaging your program up as a. Note that you can only specify the classpath from the command line, so double-clicking a. Java -cp ThirdPartyLibrary.jar jar MyProgram.jar For example, we might do this from a command prompt in the MyProject directory: class files, which we probably already know how to do (if not, check out the basic Java tutorial). Let’s say we have this directory structure:Īnd now we want to bundle this code up so other people can use it.įirst, we have to compile our code into. This tutorial walks through bundling your Java program into a. jar file is specifically designed to hold files related to Java code, and you can execute a Java program by running a. jar file is an archive file, which is a file that contains other files. Remember from the Java libraries tutorial that a. That is fine for development, but eventually you’ll probably want to package your code up so other people can run it on their own computers. So far, we’ve been writing, compiling, and running code on our own computer. Exporting Jar Files Exporting Jar Files tutorial java jar
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