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// A simple Java program to simulate a notification system
public class Main {

    public static void main(String[] args) {
        // Start the notification process
        System.out.println("Starting Notification System...");

        // Call the method to send notification
        sendNotification();

        // Call the method to receive notification
        receiveNotification();

        // End of program
        System.out.println("Notification process completed.");
    }

    /**
     * Simulates sending a notification.
     */
    public static void sendNotification() {
        try {
            // Simulate the process of sending a notification
            System.out.println("Preparing to send notification...");
            Thread.sleep(1000); // Simulating some processing delay
            System.out.println("Notification sent successfully!");
        } catch (InterruptedException e) {
            // Handle the exception if the thread is interrupted
            System.out.println("Error during notification sending: " + e.getMessage());
        }
    }

    /**
     * Simulates receiving a notification.
     */
    public static void receiveNotification() {
        try {
            // Simulate a delay before receiving the notification
            Thread.sleep(2000); // Adding 2-second gap after sending
            System.out.println("Processing received notification...");
            Thread.sleep(1000); // Simulating some processing delay
            System.out.println("Notification received successfully!");
        } catch (InterruptedException e) {
            // Handle the exception if the thread is interrupted
            System.out.println("Error during notification receiving: " + e.getMessage());
        }
    }
}