The only similarity between these two methods is that they use the pattern class but the string class imports any libraries it needs for those methods. I've even tried importing those libraries ...
The String.split methods can be very convenient for easily splitting a provided String based on a provided regular expression String. The only trick is figuring out a regular expression token to use ...
The Java tutorial Java 101: Classes and objects in Java introduces the fundamentals of Java classes and objects, including how to declare classes, describe attributes via fields, describe behaviors ...