Kode for of2 and of3

foreksempel/src/main/java/of2/lf/Car.java

+package of2.lf;
+
+public class Car {
+
+    // Felter / intern tilstand:
+    private String model;
+    private String brand;
+    private String regNum;
+    private int productionYear;
+    private double weight;
+    private double kmDriven;
+
+    // Konstruktører:
+    public Car(String model, String brand, String regNum, int productionYear, double weight) {
+        this.model = model;
+        this.brand = brand;
+        this.regNum = regNum;
+        this.productionYear = productionYear;
+        this.weight = weight;
+        this.kmDriven = 0;
+    }
+
+    // Konstruktører:
+    public Car(String model, String brand, String regNum, int productionYear, double weight, double kmDriven) {
+        this(model, brand, regNum, productionYear, weight);
+        this.kmDriven = kmDriven;
+    }
+
+    @Override
+    public String toString() {
+        return "Car [brand=" + brand + ", kmDriven=" + kmDriven + ", model=" + model + ", productionYear="
+                + productionYear + ", regNum=" + regNum + ", weight=" + weight + "]";
+    }
+
+    public static void main(String[] args) {
+        /*
+         * // Modell, Produsent, Registeringsnummer, Produksjonsår, Kilometerstand, Vekt
+         * Car car = new Car("S-MAX", "Ford", "AQ12345", 2019, 356.0);
+         */
+    }
+}

foreksempel/src/main/java/of2/lf/SelfServiceCheckout.java

+package of2.lf;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+public class SelfServiceCheckout {
+
+    // Konstanter - del 1
+    public static final Collection<String> days = Arrays.asList("mon", "tue", "wed", "thu", "fri", "sat", "sun");
+
+    // Felter / Tilstand
+    private String day;
+    private String phoneNumber;
+
+    // Konstruktør - del 3
+    public SelfServiceCheckout(String day) {
+        validateDay(day);
+        this.day = day;
+    }
+
+    // Registrer medlems-ID (telefonnummer)
+    public void registerPhoneNumber(String phoneNumer) {
+        if (this.phoneNumber != null) {
+            throw new IllegalStateException("Illegal operation");
+        }
+        if (isValidPhoneNumber(phoneNumer)) {
+            this.phoneNumber = phoneNumer;
+        } else {
+            throw new IllegalArgumentException("Not a valid phone number, please re-enter.");
+        }
+    }
+
+    // Scanne varer
+    public void scanItem(String itemName, int amount, double price) {
+        double rebate = 0;
+        if (phoneNumber != null && day.equals("thu")) {
+            rebate = 0.1;
+        }
+        System.out.println(amount + "x " + itemName + ": " + (price - (price * rebate)) + " kr");
+    }
+
+    // Valideringsmetoder - del 2
+    private void validateDay(String day) {
+        if (!days.contains(day)) {
+            throw new IllegalArgumentException("Invalid weekday");
+        }
+    }
+
+    private boolean isValidPhoneNumber(String phoneNumber) {
+        String cleanedPhoneNumber = phoneNumber.replaceAll("\\s", "");
+        if (cleanedPhoneNumber.startsWith("00479") || cleanedPhoneNumber.startsWith("00474")) {
+            if (cleanedPhoneNumber.length() != 12) {
+                return false;
+            }
+        } else if (cleanedPhoneNumber.startsWith("+479") || cleanedPhoneNumber.startsWith("+474")) {
+            if (cleanedPhoneNumber.length() != 11) {
+                return false;
+            }
+        } else {
+            return false;
+        }
+
+        char[] chars = cleanedPhoneNumber.toCharArray();
+        for (char c : chars) {
+            if (!Character.isDigit(c)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // main-metode for å teste koden
+    public static void main(String[] args) {
+
+        SelfServiceCheckout checkout = new SelfServiceCheckout("thu");
+
+        checkout.scanItem("Norvegia", 2, 120.0);
+
+        checkout.registerPhoneNumber("004742345678");
+
+        checkout.scanItem("Tomat", 3, 5.0);
+
+    }
+
+}

foreksempel/src/main/java/of3/kode/SelfServiceCheckout.java

+package of3.kode;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+
+public class SelfServiceCheckout {
+
+    // Konstanter - del 1
+    public static final Collection<String> days = Arrays.asList("mon", "tue", "wed", "thu", "fri", "sat", "sun");
+
+    // Felter / Tilstand
+    private String day;
+    private boolean adminMode;
+    private String password;
+    private String phoneNumber;
+
+    // Konstruktør - del 3
+    public SelfServiceCheckout(String day, String password) {
+        validateDay(day);
+        validatePassword(password);
+        this.day = day;
+        this.password = password;
+        this.adminMode = false;
+    }
+
+    // Aktiver admin-modus
+    public void activateAdminMode(String password) {
+        if (this.adminMode) {
+            throw new IllegalStateException("Illegal operation");
+        }
+        if (this.password.equals(password)) {
+            this.adminMode = true;
+        } else {
+            throw new IllegalArgumentException("Wrong password, permission denied");
+        }
+    }
+
+    // Registrer medlems-ID (telefonnummer)
+    public void registerPhoneNumber(String phoneNumer) {
+        if (this.phoneNumber != null) {
+            throw new IllegalStateException("Illegal operation");
+        }
+        if (isValidPhoneNumber(phoneNumer)) {
+            this.phoneNumber = phoneNumer;
+        } else {
+            throw new IllegalArgumentException("Not a valid phone number, please re-enter.");
+        }
+    }
+
+    // Scanne varer
+    public void scanItem(String itemName, int amount, double price) {
+        double rebate = 0;
+        if (phoneNumber != null) {
+            rebate = 0.1;
+        }
+        System.out.println(amount + "x " + itemName + ": " + (price - (price * rebate)) + " kr");
+    }
+
+    // Valideringsmetoder - del 2
+    private void validateDay(String day) {
+        if (!days.contains(day)) {
+            throw new IllegalArgumentException("Invalid weekday");
+        }
+    }
+
+    private boolean validatePassword(String password) {
+        if (password.length() < 6 || password.length() > 10) {
+            return false;
+        }
+        char[] chars = password.toCharArray();
+        boolean containsNumeric = false;
+        boolean containsAlphabetic = false;
+        for (char c : chars) {
+            if (Character.isDigit(c)) {
+                containsNumeric = true;
+            } else if (Character.isAlphabetic(c)) {
+                containsAlphabetic = true;
+            }
+        }
+        return containsAlphabetic && containsNumeric;
+    }
+
+    private boolean isValidPhoneNumber(String phoneNumber) {
+        String cleanedPhoneNumber = phoneNumber.replaceAll("\\s", "");
+        if (cleanedPhoneNumber.startsWith("00479") || cleanedPhoneNumber.startsWith("00474")) {
+            if (cleanedPhoneNumber.length() != 12) {
+                return false;
+            }
+        } else if (cleanedPhoneNumber.startsWith("+479") || cleanedPhoneNumber.startsWith("+474")) {
+            if (cleanedPhoneNumber.length() != 11) {
+                return false;
+            }
+        } else {
+            return false;
+        }
+
+        char[] chars = cleanedPhoneNumber.toCharArray();
+        for (char c : chars) {
+            if (!Character.isDigit(c)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // main-metode for å teste koden
+    public static void main(String[] args) {
+
+        SelfServiceCheckout checkout = new SelfServiceCheckout("thu", "passord123");
+
+        checkout.scanItem("Norvegia", 2, 120.0);
+
+        checkout.registerPhoneNumber("004742345678");
+
+        checkout.scanItem("Tomat", 3, 5.0);
+
+        checkout.activateAdminMode("passord123");
+
+    }
+
+}