> For the complete documentation index, see [llms.txt](https://educacion.gitbook.io/programacion/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://educacion.gitbook.io/programacion/exercicios-java/ud5-solucions/csv.md).

# CSV

1. Videoxogos

```java
import java.time.LocalDate;

public class Videoxogo {

    private int id;
    private String nome;
    private LocalDate dataLanzamento;
    private String xenere;
    private String plataforma;
    private int puntuacion;

    public Videoxogo(int id, String nome, LocalDate dataLanzamento, String xenere, String plataforma, int puntuacion) {
        this.id = id;
        this.nome = nome;
        this.dataLanzamento = dataLanzamento;
        this.xenere = xenere;
        this.plataforma = plataforma;
        this.puntuacion = puntuacion;
    }

    // Getters
    public int getId() { return id; }
    public String getNome() { return nome; }
    public LocalDate getDataLanzamento() { return dataLanzamento; }
    public String getXenere() { return xenere; }
    public String getPlataforma() { return plataforma; }
    public int getPuntuacion() { return puntuacion; }

    @Override
    public String toString() {
        return id + " | " + nome + " | " + dataLanzamento + " | " + xenere + " | " + plataforma + " | " + puntuacion;
    }
}

```

```java
package dao;

import modelo.Videoxogo;

import java.io.*;
import java.time.LocalDate;

public class VideoxogoDAO {

    private String path;

    public VideoxogoDAO(String path) {
        this.path = path;
    }

    public Videoxogo[] lerVideoxogos(){

        Videoxogo[] lista = new Videoxogo[10];

        try (BufferedReader br = new BufferedReader(new FileReader(path))) {

            String liña;
            int i = 0;

            br.readLine(); // saltamos a cabeceira

            while ((liña = br.readLine()) != null && i < 10) {

                String[] partes = liña.split(",");

                int id = Integer.parseInt(partes[0]);
                String nome = partes[1];
                LocalDate data = LocalDate.parse(partes[2]);
                String xenero = partes[3];
                String plataforma = partes[4];
                int puntuacion = Integer.parseInt(partes[5]);

                lista[i] = new Videoxogo(id, nome, data, xenero, plataforma, puntuacion);
                i++;
            }
        } catch (IOException e){
            System.out.println("Error na lectura" + e.getMessage())
        }

        return lista;
    }

    public void actualizarVideoxogos(Videoxogo[] videoxogos) {

        try (BufferedWriter bw = new BufferedWriter(new FileWriter(path))) {

            // Escribimos cabeceira
            bw.write("ID,Nome,DataLanzamento,Xenero,Plataforma,Puntuacion");
            bw.newLine();

            for (Videoxogo v : videoxogos) {
                if (v != null) {
                    bw.write(v.getId() + "," +
                            v.getNome() + "," +
                            v.getDataLanzamento() + "," +
                            v.getXenero() + "," +
                            v.getPlataforma() + "," +
                            v.getPuntuacion());
                    bw.newLine();
                }
            }
        } catch (IOException e){
            System.out.println("Error na escritura" + e.getMessage())
        }
    }
}


```

```java
package service;

import dao.VideoxogoDAO;
import modelo.Videoxogo;

import java.io.IOException;

public class VideoxogoService {

    private VideoxogoDAO dao;

    public VideoxogoService(VideoxogoDAO dao) {
        this.dao = dao;
    }

    public Videoxogo[] obterVideoxogos() {
        return dao.lerVideoxogos();
    }

    public void gardarVideoxogos(Videoxogo[] videoxogos){
        dao.actualizarVideoxogos(videoxogos);
    }
}

```

```java
package app;

import dao.VideoxogoDAO;
import modelo.Videoxogo;
import service.VideoxogoService;

import java.io.IOException;
import java.time.LocalDate;

public class App {

    public static void main(String[] args) {

        try {

            VideoxogoDAO dao = new VideoxogoDAO("videoxogos.csv");
            VideoxogoService service = new VideoxogoService(dao);

            // 1️⃣ Ler ficheiro
            Videoxogo[] lista = service.obterVideoxogos();

            System.out.println("Listado de videoxogos:");
            for (Videoxogo v : lista) {
                if (v != null) {
                    System.out.println(v);
                }
            }

            // 2️⃣ Crear novo videoxogo
            Videoxogo novo = new Videoxogo(
                    6,
                    "Elden Ring",
                    LocalDate.of(2022, 2, 25),
                    "RPG",
                    "Multiplataforma",
                    9
            );

            // Engadilo no array
            for (int i = 0; i < lista.length; i++) {
                if (lista[i] == null) {
                    lista[i] = novo;
                    break;
                }
            }

            // 3️⃣ Actualizar ficheiro
            service.gardarVideoxogos(lista);

            System.out.println("Videoxogo engadido correctamente.");

        } catch (IOException e) {
            System.out.println("Erro: " + e.getMessage());
        }
    }
}

```


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