diff --git a/foreksempel/src/main/java/of2/lf/Car.java b/foreksempel/src/main/java/of2/lf/Car.java
new file mode 100644
index 0000000000000000000000000000000000000000..0d6aba71c04f63e0b3aadecf7cba9c16fd01076d
--- /dev/null
+++ b/foreksempel/src/main/java/of2/lf/Car.java
@@ -0,0 +1,41 @@
+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);
+ */
+ }
+}
diff --git a/foreksempel/src/main/java/of2/lf/SelfServiceCheckout.java b/foreksempel/src/main/java/of2/lf/SelfServiceCheckout.java
new file mode 100644
index 0000000000000000000000000000000000000000..9edbe9c244524558af6bfc8bee7a1286ef55ba67
--- /dev/null
+++ b/foreksempel/src/main/java/of2/lf/SelfServiceCheckout.java
@@ -0,0 +1,85 @@
+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);
+
+ }
+
+}
diff --git a/foreksempel/src/main/java/of3/kode/SelfServiceCheckout.java b/foreksempel/src/main/java/of3/kode/SelfServiceCheckout.java
new file mode 100644
index 0000000000000000000000000000000000000000..09935186bc460c7cc8c58c338f4fed194761bd7b
--- /dev/null
+++ b/foreksempel/src/main/java/of3/kode/SelfServiceCheckout.java
@@ -0,0 +1,123 @@
+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");
+
+ }
+
+}