I never fully understand

Question

What are packages in java
For example
java.util.ArrayList
Does this means that ArrayList is a class which is inside the util folder.
And this util folder is inside java folder..
Please explain to me.
Thank you

Answer 1

Hello stephen haokip

Yes, packages are like directories.
http://tutorials.jenkov.com/java/packages.html#:~:text=All%20Java%20source%20and%20class,is%20like%20a%20directory%20structure.