What's the difference between including files with JSP include directive, JSP include action and using JSP Tag Files?

What's the difference between including files with JSP include directive, JSP include action and using JSP Tag Files?

java jsp include jsp-tags tagfile

java

How to including variables within strings? [duplicate]

java variables insert include quotation-marks

java

Extend a java class from one file in another java file

java import include

java