Repetition Präsentation

Code/Steiner/oopRepetition - 24-23-10/src/DateOfBirth.java

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+// DateOfBirth class to manage birth date and age calculation
+class DateOfBirth {
+    private int birthYear;
+    private int birthMonth;
+    private int birthDay;
+
+    // Constructor
+    public DateOfBirth(int birthYear, int birthMonth, int birthDay) {
+        this.birthYear = birthYear;
+        this.birthMonth = birthMonth;
+        this.birthDay = birthDay;
+    }
+
+    // Method to calculate the age based on the hardcoded current date (23.10.2024)
+    public int calculateAge() {
+        int currentYear = 2024;
+        int currentMonth = 10;
+        int currentDay = 23;
+
+        int age = currentYear - birthYear;
+
+        // Adjust the age if the birthday hasn't happened yet this year
+        if (birthMonth > currentMonth || (birthMonth == currentMonth && birthDay > currentDay)) {
+            age--;
+        }
+        return age;
+    }
+
+    // Method to return the birth date as a string
+    public String getBirthDate() {
+        return birthDay + "." + birthMonth + "." + birthYear;
+    }
+}

Code/Steiner/oopRepetition - 24-23-10/src/Main.java

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+// Main class with methods to create, modify, and display a person
+public class Main {
+    public static void main(String[] args) {
+        // Create a Person object with all parameters
+        Person person = createPerson();
+
+        // Print the introduction and list of information
+        printPersonDetails(person);
+
+        // Modify the person and return a new object
+        Person updatedPerson = modifyPerson(person, "Bob", "789 Oak Street");
+
+        // Print the updated person information
+        System.out.println("\nAfter modification:");
+        printPersonDetails(updatedPerson);
+    }
+
+    // Method to create and return a Person object
+    public static Person createPerson() {
+        DateOfBirth dob = new DateOfBirth(1994, 6, 15); // Example birth date
+        return new Person("Alice", dob, "1234 Elm Street");
+    }
+
+    // Method to print a person's details
+    public static void printPersonDetails(Person person) {
+        person.introduce(); // Print the introduction
+        person.listInformation(); // Print the full list of details
+    }
+
+    // Method to modify a person object and return the modified person (custom
+    // object as return type)
+    public static Person modifyPerson(Person originalPerson, String newName, String newAddress) {
+        // Modify the person's details and return the modified object
+        originalPerson.setName(newName); // Update the name
+        originalPerson.setAddress(newAddress); // Update the address
+        return originalPerson; // Return the modified object
+    }
+}

Code/Steiner/oopRepetition - 24-23-10/src/Person.java

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+// Person class that uses the DateOfBirth class
+class Person {
+    private String name;
+    private DateOfBirth dateOfBirth; // Using DateOfBirth for birth date management
+    private String address;
+
+    // Constructor
+    public Person(String name, DateOfBirth dateOfBirth, String address) {
+        this.name = name;
+        this.dateOfBirth = dateOfBirth;
+        this.address = address;
+    }
+
+    // Method to introduce the person
+    public void introduce() {
+        System.out.println("Hi, I'm " + name + ". I was born on " + dateOfBirth.getBirthDate() + " and I am "
+                + dateOfBirth.calculateAge() + " years old.");
+    }
+
+    // Method to list the person's details
+    public void listInformation() {
+        System.out.println("Name: " + name);
+        System.out.println("Birth Date: " + dateOfBirth.getBirthDate());
+        System.out.println("Age: " + dateOfBirth.calculateAge());
+        System.out.println("Address: " + address);
+    }
+
+    // Getter for name
+    public String getName() {
+        return name;
+    }
+
+    // Setter for name
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    // Getter for address
+    public String getAddress() {
+        return address;
+    }
+
+    // Setter for address
+    public void setAddress(String address) {
+        this.address = address;
+    }
+}