Programação Orientada a Objetos 2020.1 Recursos Java Apostila Caelum (https://www.caelum.com.br/apostila-java-orientacao-objetos/) Java Gafanhoto (https://www.youtube.com/playlist?list=PLHz_AreHm4dkqe2aR0tQK74m8SFe-aGsY) Java Gafanhoto Link2 (https://www.cursoemvideo.com/course/curso-de-poo-java/)