If i want to use array list do i need to import it thus from

If i want to use array list do i need to import it!! thus from what i know the array list do not need to be import (import java.util.ArrayList)

Solution

Yes, you must import any and all of the util classes in a java program using the import command.
But however, some packages do not need an import, for example java.lang.*.

So always import the ArrayList and other util classes before use.