Implementing serializable to a list of person

src/main/java/com/jesuspinar/miobjeto/serializable/Main.java

@@ -3,27 +3,30 @@ package com.jesuspinar.miobjeto.serializable;
 import com.jesuspinar.miobjeto.serializable.controller.ObjReader;
 import com.jesuspinar.miobjeto.serializable.controller.ObjWriter;
 import com.jesuspinar.miobjeto.serializable.model.Person;
+import com.jesuspinar.miobjeto.serializable.model.People;
 
 import java.io.File;
 
 public class Main {
     public static void main(String[] args) {
-        Person person = new Person("Manolo", 32);
-        Person person1 = new Person("Javier", 23);
-
         File file = new File("person.bin");
 
-        ObjWriter.write(person,file);
-        ObjWriter.write(person1,file);
+        //Create list
+        People data = new People();
+        //Init list
+        data.add(new Person("Manolo", 32));
+        data.add(new Person("Jorge", 2));
+        data.add(new Person("Pepe", 89));
 
-        //machaca el ultimo que ha sido escrito con nueva entrada
-        //opt 1 : crear un array y serializarlo para despues leerlo
-        //opt 2 : crear tantos archivos como obj alla xd
+        boolean isWrited = ObjWriter.write(data,file);
 
-        Person p = (Person) ObjReader.read(file);
-        Person p2 = (Person) ObjReader.read(file);
+        People dat = null;
+        if (isWrited) {
+            dat = (People) ObjReader.read(file);
+        }
+        if (dat != null){
+            System.out.println(dat.toString());
+        }
 
-        System.out.println(p);
-        System.out.println(p2);
     }
 }

src/main/java/com/jesuspinar/miobjeto/serializable/controller/ObjWriter.java

@@ -1,7 +1,5 @@
 package com.jesuspinar.miobjeto.serializable.controller;
 
-import com.jesuspinar.miobjeto.serializable.model.Person;
-
 import java.io.*;
 
 public class ObjWriter {
@@ -18,9 +16,9 @@ public class ObjWriter {
     }
     public static byte[] convertObjectToBytes(Object obj) {
         ByteArrayOutputStream boas = new ByteArrayOutputStream();
-        try (ObjectOutputStream ois = new ObjectOutputStream(boas)
+        try (ObjectOutputStream objOutStream = new ObjectOutputStream(boas)
         ){
-            ois.writeObject(obj);
+            objOutStream.writeObject(obj);
             return boas.toByteArray();
         } catch (IOException ioe) {
             ioe.printStackTrace();

src/main/java/com/jesuspinar/miobjeto/serializable/model/People.java

@@ -0,0 +1,30 @@
+package com.jesuspinar.miobjeto.serializable.model;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.ArrayList;
+
+public class People implements Serializable {
+    @Serial
+    private static final long serialVersionUID = 1L;
+    private ArrayList<Person> data ;
+
+    public People() {
+        data = new ArrayList<>();
+    }
+
+    public boolean add(Person p){
+        data.add(p);
+        return true;
+    }
+
+    public boolean remove(Person p){
+        data.remove(p);
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return data.toString();
+    }
+}

src/main/java/com/jesuspinar/miobjeto/serializable/model/Person.java

@@ -3,11 +3,13 @@ package com.jesuspinar.miobjeto.serializable.model;
 import java.io.Serializable;
 
 public class Person implements Serializable {
-    private static final long serialID = 1L;
+    private static int CONT = 0;
+    private int id ;
     private String name;
     private int age;
 
     public Person(String name, int age) {
+        id = ++CONT;
         this.name = name;
         this.age = age;
     }
@@ -30,6 +32,6 @@ public class Person implements Serializable {
 
     @Override
     public String toString() {
-        return "name = " + name + " age = " + age;
+        return "\nID = " + id + ", NAME = " + name + ", AGE = " + age;
     }
 }