commit añadir main

.gitignore

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+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Actividad8.1.iml" filepath="$PROJECT_DIR$/Actividad8.1.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

.idea/workspace.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="4717f6a0-a6f8-4348-95fd-a166783ad8ed" name="Changes" comment="">
+      <change afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/Actividad8.1.iml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/Main.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/Persona.java" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="ProjectId" id="2I3NecE37I09iVjoVzByIvc6PfS" />
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true">
+    <ConfirmationsSetting value="2" id="Add" />
+  </component>
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "ASKED_ADD_EXTERNAL_FILES": "true",
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "WebServerToolWindowFactoryState": "false",
+    "nodejs_package_manager_path": "npm"
+  }
+}]]></component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="4717f6a0-a6f8-4348-95fd-a166783ad8ed" name="Changes" comment="" />
+      <created>1669406403496</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1669406403496</updated>
+      <workItem from="1669406404738" duration="1182000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State />
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+</project>

Actividad8.1.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

README.md

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+# Aplicación Spring Tool
+
+1. Primero creamos un fichero llamado Persona.dat
+2. Creamos el array de nombres de las personas, los apellidos y las edades.
+3. Por ultimo usamos el .writeObject para añadir las lineas de cada array y lo cerramos con el .close
+
+
+## RESULTADO:
+```
+Ha terminado el proceso correctamente.
+```

src/Main.java

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+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+
+        File fichero = new File("C:\\Users\\JoanMoncho\\Documents\\Personas.dat");
+        FileOutputStream fos = new FileOutputStream(fichero);
+        ObjectOutputStream oos = new ObjectOutputStream(fos);
+        //ArrayList<Persona> personas = new ArrayList<>();
+
+        String[] nombres= {"Joan","Sergi","Hector","Paco"};
+        String[] apellidos = {"Moncho","Signes","Ferrandiz","Mengual"};
+        int[] edades= {20,18,19,45};
+
+        oos.writeObject(nombres);
+        oos.writeObject(apellidos);
+        oos.writeObject(edades);
+
+        fos.close();
+        oos.close();
+
+        System.out.println("Ha terminado el proceso correctamente.");
+    }
+}

src/Persona.java

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+import java.io.Serializable;
+
+public class Persona implements Serializable {
+
+    private String nombre;
+    private String apellido;
+    private int edad;
+
+    public Persona(String nombre,String apellido, int edad) {
+        this.nombre = nombre;
+        this.apellido = apellido;
+        this.edad= edad;
+    }
+
+    public Persona() {
+        this.nombre=null;
+    }
+    public String getApellido() {
+        return apellido;
+    }
+    public void setApellido(String apellido) {
+        this.apellido = apellido;
+    }
+
+
+    public String getNombre() {
+        return nombre;
+    }
+
+    public void setNombre(String nombre) {
+        this.nombre = nombre;
+    }
+
+    public int getEdad() {
+        return edad;
+    }
+
+    public void setEdad(int edad) {
+        this.edad = edad;
+    }
+
+}