Este quinto volumen de la serie 100 Mini Ejercicios de Java está dedicado a uno de los pasos más importantes para cualquier persona que quiere aprender Java de verdad: clases, objetos, atributos, constructores, encapsulación y pequeños sistemas orientados a objetos.

Si ya conoces variables, condicionales, bucles, arrays, cadenas y métodos, este libro te ayudará a dar el siguiente salto: dejar de escribir programas con datos sueltos y empezar a organizar tu código alrededor de entidades reales.

A lo largo del libro aprenderás a crear clases como:

Persona, Alumno, Producto, Libro, CuentaBancaria, Empleado, Cliente, Pedido, Factura, Reserva, Curso y muchas más.

Cada ejercicio está diseñado para que entiendas un concepto concreto sin teoría innecesaria. Primero crearás clases sencillas. Después añadirás métodos de instancia, constructores, atributos privados, getters, setters, validaciones, uso de this, objetos dentro de otros objetos y arrays de objetos.

El objetivo es que comprendas la programación orientada a objetos paso a paso, con ejemplos cotidianos y código fácil de seguir.

En este libro aprenderás a:

crear tus propias clases en Java;
crear objetos usando new;
trabajar con atributos y métodos de instancia;
usar constructores para inicializar objetos;
proteger datos con private;
usar getters y setters;
validar datos dentro de una clase;
entender la palabra this;
crear objetos relacionados entre sí;
trabajar con arrays de objetos;
construir pequeños sistemas de consola orientados a objetos.

No es un libro de teoría pesada. Es un libro para practicar.

Cada ejercicio incluye enunciado, objetivo, solución completa en Java, explicación paso a paso, nota de programación orientada a objetos y posible mejora.

Si quieres entender la POO en Java sin perderte entre explicaciones complicadas, este libro te guiará desde la primera clase hasta tus primeros pequeños sistemas orientados a objetos.

100 Mini Ejercicios de Java: Programación Orientada a Objetos es el volumen ideal para consolidar tu aprendizaje y prepararte para el siguiente paso: trabajar con colecciones y listas dinámicas como ArrayList y HashMap.

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