How to set the priority order of jar files in Eclipse

If you have multiple jar files in your Eclipse project, then you would have some problems, if some jar files have classes with the same name. In this case, the priority order of the jar files should matter, because you always want to import the right class.

How to set the priority order of your jar files in Eclipse?

Right click your project, and then click the Property menu.
In the "Java Build Path" menu on the left of the popup Window.
Then you can see the "Order and Export" tab which shows the order of the jar files and source codes.