How to disable the "target" and its subfolders in eclipse?

Question

How to hide the following folders from the package explorer view? Image below

• "target" and all its subfolders
• other empty directories such as "src"

Answer 1

For Java, you need access to the element filter .
It may be present for other plugins, for example, DB Explorer :

This illustrates how to specify a name / regular expression for all directories that you do not want to see (exclude) in the package explorer.