Aggiunta serializzazione

.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/discord.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DiscordProjectSettings">
+    <option name="show" value="ASK" />
+    <option name="description" value="" />
+  </component>
+</project>

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PyPep8NamingInspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="ignoredErrors">
+        <list>
+          <option value="N802" />
+          <option value="N806" />
+          <option value="N801" />
+        </list>
+      </option>
+    </inspection_tool>
+    <inspection_tool class="PyUnresolvedReferencesInspection" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredIdentifiers">
+        <list>
+          <option value="int.setEnabled" />
+        </list>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="openjdk-25" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </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>

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>JAVA_Ripasso</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>25</maven.compiler.source>
+        <maven.compiler.target>25</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/java/org/example/Cosa.java

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+package org.example;
+
+import java.io.Serializable;
+
+public class Cosa implements Pesabile, Serializable {
+    private String descrizione;
+    private int volume;
+    private int peso;
+
+    public Cosa(String descrizione, double volume, double peso) {
+        this.descrizione = descrizione;
+        this.volume = Zaino.doubleToInt(volume);
+        this.peso = Zaino.doubleToInt(peso);
+    }
+
+    public String toString() {
+        return descrizione + "," + volume + "," + peso;
+    }
+
+    public String getDescrizione() {
+        return descrizione;
+    }
+
+    public double getVolume() {
+        return Zaino.intToDouble(volume);
+    }
+
+    public double getPeso() {
+        return Zaino.intToDouble(peso);
+    }
+
+    /* Restituisce il volume in ml*/
+    public int getRawVolume() {
+        return this.volume;
+    }
+
+    /* Restituisce il peso in ml*/
+    public int getRawPeso() {
+        return this.peso;
+    }
+
+
+}

src/main/java/org/example/Main.java

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+package org.example;
+
+import java.io.*;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+        ZainoScolastico zs = new ZainoScolastico("The Nord Face", "blu", 15.50, 0.4, false, 5, true);
+        Zaino z = new Zaino("Salewa", "giallo fluo", 25.00, 0.8, true, 4);
+
+        zs.inserisci(new Cosa("tablet apple", 0.2, 0.8));
+        System.out.println(zs.getVolumeOccupato());
+        zs.inserisci(new Cosa("quaderno matematica", 1.2, 2));
+                System.out.println(zs.getRawVolumeLibero());
+        zs.inserisci(new Cosa("quaderno inglese", 0.8, 2));
+        System.out.println(zs.getRawVolumeLibero());
+
+
+
+        // TEST SERIALIZZAZIONE
+
+        String filename = (new File("target\\z1.ser")).getAbsolutePath();
+
+        Zaino z1;
+        z.inserisci(new Cosa("Caschetto arrampicata", 5, 1));
+
+        try {
+            z.salva(filename);
+        } catch (IOException e) {
+            System.out.println("Errore serializzazione");
+        }
+
+
+        try {
+            z1 = Zaino.carica(filename);
+            System.out.println("Oggetto deserializzato");
+            System.out.println("A: "+ z);
+            System.out.println("B: "+ z1);
+            System.out.println("A: "+ z.getPeso());
+            System.out.println("B: "+ z1.getPeso());
+        } catch (IOException e) {
+            System.out.println("Errore lettura");
+        } catch (ClassNotFoundException e) {
+            System.out.println("Classe non trovata");
+        }
+
+    }
+}

src/main/java/org/example/Pesabile.java

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+package org.example;
+
+public interface Pesabile {
+    double getPeso();
+}

src/main/java/org/example/Zaino.java

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+package org.example;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+public class Zaino implements Pesabile, Serializable {
+    private final String marca;
+    private String colore;
+    private final int capacitaLitri; // in ml
+    private boolean impermeabile;
+    private int numeroScomparti;
+    private final String erroreScomparti = "Il numero di scomparti non può essere inferiore a 1";
+
+    private int pesoVuoto; // in g
+    private final List<Cosa> cose = new ArrayList<>();
+
+    // Costruttori
+
+    public Zaino(String marca, String colore, double capacitaLitri, double pesoVuoto) {
+        this.marca = marca;
+        this.colore = colore;
+        this.capacitaLitri = doubleToInt(capacitaLitri);
+        this.pesoVuoto = doubleToInt(pesoVuoto);
+        this.impermeabile = false;
+        this.numeroScomparti = 2;
+    }
+
+    public Zaino(String marca, String colore, double capacitaLitri, double pesoVuoto, boolean impermeabile, int numeroScomparti) {
+        this.marca = marca;
+        this.colore = colore;
+        this.capacitaLitri = doubleToInt(capacitaLitri);
+        this.pesoVuoto = doubleToInt(pesoVuoto);
+        this.impermeabile = impermeabile;
+        this.numeroScomparti = numeroScomparti;
+    }
+
+    // Getters
+    public String getMarca() {
+        return marca;
+    }
+
+    public String getColore() {
+        return colore;
+    }
+
+    public double getCapacitaLitri() {
+        return intToDouble(getRawCapacitaLitri());
+    }
+
+    public int getRawCapacitaLitri() {
+        return capacitaLitri;
+    }
+
+    public boolean isImpermeabile() {
+        return impermeabile;
+    }
+
+    public int getNumeroScomparti() {
+        return numeroScomparti;
+    }
+
+    public int getRawPesoVuoto() {
+        return pesoVuoto;
+    }
+
+    public double getPesoVuoto() {
+        return intToDouble(this.getRawPesoVuoto());
+    }
+
+    /* Restituisce il peso dello zaino, in g */
+    public int getRawPeso() {
+        Iterator<Cosa> iterator = cose.iterator();
+        int pesoTotale = 0;
+        if (iterator.hasNext()) {
+            pesoTotale += iterator.next().getRawPeso();
+        }
+        return pesoTotale + getRawPesoVuoto();
+    }
+
+    public double getPeso() {
+        return intToDouble(getRawPeso());
+    }
+
+    public int getRawVolumeOccupato() {
+        Iterator<Cosa> iterator = cose.iterator();
+        int volumeOccupato = 0;
+        while (iterator.hasNext()) {
+            volumeOccupato += iterator.next().getRawVolume();
+        }
+        return volumeOccupato;
+    }
+
+    public double getVolumeOccupato() {
+        return intToDouble(getRawVolumeOccupato());
+    }
+
+    public int getRawVolumeLibero() {
+        return getRawCapacitaLitri() - getRawVolumeOccupato();
+    }
+
+    public double getVolumeLibero() {
+        return intToDouble(getRawVolumeLibero());
+    }
+
+    // Setters
+
+    public void setColore(String colore) {
+        this.colore = colore;
+    }
+
+    public void setImpermeabile(boolean impermeabile) {
+        this.impermeabile = impermeabile;
+    }
+
+    public void setNumeroScomparti(int numeroScomparti) {
+        if (numeroScomparti > 0) {
+            this.numeroScomparti = numeroScomparti;
+        } else {
+            throw new IllegalArgumentException(erroreScomparti);
+        }
+    }
+
+
+    // To string
+    /* Restituisce le informazioni riguardo alla macchina nel formato:
+        marca,colore,capacitaLitri,impermeabile,numeroScomparti
+    * */
+    public String toString() {
+        return getMarca() + "," + getColore() + "," + getCapacitaLitri() + "," + isImpermeabile() + "," + getNumeroScomparti();
+    }
+
+
+    // Misc
+
+    public void aggiungiScomparto() {
+        numeroScomparti++;
+    }
+
+    public void rimuoviScomparto() {
+        if (numeroScomparti > 0) {
+            numeroScomparti--;
+        } else {
+            throw new IllegalArgumentException(erroreScomparti);
+        }
+    }
+
+    public boolean equals(Object o) {
+        return o instanceof Zaino && ((Zaino) o).getMarca().equals(this.getMarca()) && ((Zaino) o).getCapacitaLitri() == this.getCapacitaLitri();
+    }
+
+
+    public int confrontaCapacita(Zaino altroZaino) {
+        double thisCapacita = this.getCapacitaLitri();
+        double thatCapacita = altroZaino.getCapacitaLitri();
+        if (thisCapacita > thatCapacita) return 1;
+        if (thisCapacita < thatCapacita) return -1;
+        return 0;
+    }
+
+
+    public void inserisci(Cosa cosa) throws IllegalArgumentException {
+        if (this.getRawPeso() + cosa.getRawPeso() > 25000) {
+            throw new IllegalArgumentException("Il peso supera i 25kg. Peso attuale: " +
+                    String.format("%.2f", this.getPeso()) + ". Peso oggetto: " + String.format("%.2f", this.getPeso()));
+        } else if (this.getRawVolumeLibero() < cosa.getRawVolume()) {
+            throw new IllegalArgumentException("Lo zaino e' pieno. Volume zaino: " +
+                    String.format("%.2f", this.getCapacitaLitri()) + ". Volume libero: " + String.format("%.2f", this.getVolumeLibero()) +
+                    ". Volume cosa: " + String.format("%.2f", cosa.getVolume())
+            );
+        } else {
+            this.cose.add(cosa);
+        }
+    }
+
+
+    public void salva(String filename) throws IOException {
+        FileOutputStream file = new FileOutputStream(filename);
+        ObjectOutputStream out = new ObjectOutputStream(file);
+        out.writeObject(this);
+        out.close();
+        file.close();
+    }
+
+    // Metodi statici
+
+    public static Zaino carica(String filename) throws IOException, ClassNotFoundException {
+        FileInputStream file = new FileInputStream(filename);
+        ObjectInputStream in = new ObjectInputStream(file);
+        Zaino output = (Zaino) in.readObject();
+        in.close();
+        file.close();
+        return output;
+    }
+
+    public static int doubleToInt(double i) {
+        return (int) (i * 1000);
+    }
+
+    public static double intToDouble(int f) {
+        return (double) f / 1000;
+    }
+
+
+}

src/main/java/org/example/ZainoScolastico.java

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+package org.example;
+
+public class ZainoScolastico extends Zaino implements Pesabile {
+    private boolean hasScompartoPerTablet;
+
+    public ZainoScolastico(String marca, String colore, double capacitaLitri, double pesoVuoto, boolean impermeabile, int numeroScomparti, boolean hasScompartoPerTablet) {
+        super(marca, colore, capacitaLitri, pesoVuoto, impermeabile, numeroScomparti);
+        this.hasScompartoPerTablet = hasScompartoPerTablet;
+    }
+
+    public void inserisci(Cosa cosa) throws IllegalArgumentException {
+        String descrizioneCosa = cosa.getDescrizione();
+        if (descrizioneCosa.contains("libro") || descrizioneCosa.contains("quaderno") || descrizioneCosa.contains("tablet")) {
+            super.inserisci(cosa);
+
+        } else {
+            throw new IllegalArgumentException("La cosa non è un libro, un quaderno o un tablet");
+        }
+    }
+
+
+}