Feat: Resolve Default Method Conflict

src/CardPayment.java

@@ -0,0 +1,11 @@
+class CardPayment implements PaymentMethod {
+    @Override
+    public void pay(int amount) {
+        System.out.println("Pay card: " + amount + " грн");
+    }
+
+    @Override
+    public String name() {
+        return "Card";
+    }
+}

src/Main.java

@@ -0,0 +1,16 @@
+//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) {
+            PaymentProcessor processor = new PaymentProcessor();
+            PaymentMethod card = new CardPayment();
+            PaymentMethod paypal = new PaypalPayment();
+            processor.process(card, 1000);
+            processor.process(paypal, 500);
+            System.out.println();
+            card.payWithFee(1000, 25);
+            paypal.payWithFee(500, 10);
+        }
+}
+
+

src/PaymentMethod.java

@@ -0,0 +1,14 @@
+interface PaymentMethod {
+    String name();
+
+    void pay(int amount);
+
+    default void payWithFee(int amount, int fee) {
+        int totalAmount = amount + fee;
+        System.out.println("Total amount to pay: " + totalAmount);
+        pay(totalAmount);
+    }
+}
+
+
+

src/PaymentProcessor.java

@@ -0,0 +1,6 @@
+class PaymentProcessor{
+    public void process(PaymentMethod method, int amount) {
+        System.out.println("Processing payment with " + method.name());
+        method.pay(amount);
+    }
+}

src/PaypalPayment.java

@@ -0,0 +1,11 @@
+class PaypalPayment implements PaymentMethod {
+    @Override
+    public String name() {
+        return "PayPal";
+    }
+
+    @Override
+    public void pay(int amount) {
+        System.out.println("Paying " + amount + " using PayPal.");
+    }
+}

src/Task2/DailyReport.java

@@ -0,0 +1,13 @@
+package Task2;
+
+public class DailyReport extends ReportGenerator {
+    @Override
+    protected String fetchData() {
+        return "Daily sales: 1000 грн, New customers: 50";
+    }
+
+    @Override
+    protected String formatData(String data) {
+        return "Formatted Daily Report:" + data;
+    }
+}

src/Task2/Main2.java

@@ -0,0 +1,8 @@
+package Task2;
+
+public class Main2 {
+    public static void main(String[] args) {
+        ReportGenerator dailyReport = new DailyReport();
+        dailyReport.generate();
+    }
+}

src/Task2/ReportGenerator.java

@@ -0,0 +1,19 @@
+package Task2;
+
+abstract class ReportGenerator {
+    public final void generate() {
+        String data = fetchData();
+        String formattedData = formatData(data);
+        displayReport(formattedData);
+    }
+
+    protected abstract String fetchData();
+
+    protected abstract String formatData(String data);
+
+    protected void displayReport(String formattedData) {
+        System.out.println("Report:");
+        System.out.println(formattedData);
+    }
+
+}

src/Task3/EmailNotifier.java

@@ -0,0 +1,7 @@
+package Task3;
+
+interface EmailNotifier {
+    default void send(String message) {
+        System.out.println("Sending Email: " + message);
+    }
+}

src/Task3/Main3.java

@@ -0,0 +1,8 @@
+package Task3;
+
+public class Main3 {
+    public static void main(String[] args) {
+        MultiNotifier notifier = new MultiNotifier();
+        notifier.send("message");
+    }
+}

src/Task3/MultiNotifier.java

@@ -0,0 +1,9 @@
+package Task3;
+
+class MultiNotifier implements SmsNotifier, EmailNotifier {
+    @Override
+    public void send(String message) {
+        SmsNotifier.super.send(message);
+        EmailNotifier.super.send(message);
+    }
+}

src/Task3/SmsNotifier.java

@@ -0,0 +1,7 @@
+package Task3;
+
+interface SmsNotifier {
+    default void send(String message) {
+        System.out.println("Sending SMS: " + message);
+    }
+}