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How to Create Jar File
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Follow this step by step guide to learn how to create a jar file and see how java archive files can be created with the help of the command prompt. • Don't forget to check out our site http://howtech.tv/ for more free how-to videos! • / ithowtovids - our feed • / howtechtv - join us on Facebook • https://plus.google.com/1034403827176... - our group in Google+ • Jar stands for Java Archive which is a file format used to aggregate java classes and other resources such as images or text into one package. • We can create a jar file in several ways. For the purpose of this tutorial, we will be creating a jar file with the help of the command prompt. • Step 1 -- Open the command prompt • First of all, open the run command by pressing the windows + r key. Over there, type in cmd and hit the enter key in order to open the command prompt. • Step 2 -- Change the Directory • In the command prompt, go to the directory where the java classes are kept. In order to do so, type the cd command followed by the desired directory name. • For the purpose of this tutorial, we will go to the directory named as java classes . • In order to check the files in this folder, enter the dir command. You will notice some java files present with . java extension in this directory. These are the files of which we are going to make a jar file. • • Step 3 -- Enter the jar --cf command • Simply type the jar - cf myfile .jar *. java command and then hit the enter key. • In this command, jar is telling the java compiler to create jar file, cf is an attribute of create file, myfile.jar is the name of our output file and the *.java is the extension of the files which will be packed in the archive. • After done with that, simply open the directory listing again by dir command to see whether the file has been created or not. And you will notice that a file with .jar extension will appear with the same name we used in the command. • Step 4 -- View the jar file • Let us open up the directory through windows explorer, right click on the jar file and open its properties. • It can be seen that this type of the file is an Executable Jar file. And this was all about creating a jar file.
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