Package A Java project into an executable JAR File

This problem can be solved in many ways, but the simplest is to use the Export (Explorer) function of Eclipse. The following describes how to generate executable jar.

File ---> export... ----> JAVA ---> JAR file -----> next

In the displayed dialog box, select the project to be exported and select the directory to be exported in the jar file column. The default setting is used for other options.

Next ----> next -----> select the class file containing the main function in the main class column ------> next