What is the real life the state pattern usage somewhere in java libraries?

I just wanna understand what is the difference between State & Strategy design pattern.

I read multiple articles, and almost got it. To make it perfect wanna see a real life example and appreciate it from some java library. e.g. for Strategy it's a Comparator sent into TreeSet.

Help me please to find the same for State. Please, don't make it up by yourself, i read many of them, e.g. TrafficLight, etc. I need exactly from a standard java lib. ( Ok if nobody provide java example I'll accept an example from other programming languages libs or even script languages, but java appreciated )