Coursera
LearnQuest
Introduction to Object-Oriented Programming with Java (Coursera)
Dive into the world of object-oriented programming with our Introduction to Object-Oriented Programming with Java course. This foundational course is part of Coursera's Core Java Specialization and will equip you with essential skills in creating simple Java classes that embody encapsulation principles, importing other classes for use, working effectively with strings, and utilizing advanced math functions.