How do i make JAR file using Eclipse?

How do i make JAR file using Eclipse?

To make a JAR file from the Eclipse, you must assure you have a ready project. Open Eclipse application then right click on your project. Then select Export option like this image below

Click on the Java folder to browse, then select JAR file. Click Next.

In the JAR file specification page, click on "Select the resources to export" option to select which resource you want to export. Specify your file location on "Select the export destination".
Click Finish button to create your new JAR file. Now you have successfully made new JAR file