http

http://www.google.com/search

http -> protocolo

"/search" -> recurso

http methods = GET, POST, PUT, DELETE, PATCH

requisicao = verbo + rota

GET + /products

POST + /products

resposta -> headers + body + statusCode

• [privacidade] [keywords] [variavel/metodo]

Composicao

class Personagem {
    private int vida;
    private int ataque;
    private int defesa;
}

class Arqueiro extends Personagem {
    private String nome;
    private Arco arco;
}

class Arco {
    private int numeroDeFlechas;
}

Ordem recomendada

• Model: Product
• Repository (acesso ao DB): ProductRepository
• Service(regras e logicas): ProductService
• Controller(fornece as funcionalidas): ProductController