[tonyedgecombe]

> No it’s from a book called design patterns

I think you will find most Java programmers were using these patterns before they came across the book. The language naturally leads you in that direction. The book just put a name on them.

[brandonmenc]

The book was published in 1994 with examples in C++ and Smalltalk.

Java was released in 1995.

[ninetyninenine]

Yes oop was and still is religiously followed by many. But during that time it was new and thought of as revolutionary.

[tonyedgecombe]

My mistake, I misremembered it.

[igouy]

September 17, 1987 "Using Pattern Languages for Object-Oriented Programs"

https://c2.com/doc/oopsla87.html