State and behavior

https://stackoverflow.com/questions/9967733/objects-with-state-and-behavior-in-oop fields or state can be thought of current conditions within an object. A banana's state would be its shape and colour and size Methods or behaviours can be thought of its acting. With the banana, whether it is ripe or dry can be the behaviour.

http://javadevwannabe.blogspot.com/2012/02/state-behavior-and-identity.html

https://www.yegor256.com/2014/12/09/immutable-object-state-and-behavior.html

https://www.yegor256.com/webinars.html  get  rid of new

quara
https://www.quora.com/What-is-the-difference-between-object-oriented-analysis-and-object-oriented-design