Angular2 Communicating Between Components

## Overview
Communicating between components is a fundamental aspect of Angular 2 that enhances how different parts of your application interact and share data. Utilizing features like Observable and Subject allows for a more dynamic and responsive user interface. This approach not only ensures better data management but also improves the overall user experience.

The use of Observables contributes significantly to Angular's reactive programming model, making it easier to manage asynchronous data streams. This method is especially useful in applications where multiple components need to update or react to shared data changes.

## Features
- **Observable Stream**: Utilizes Observables to create a data stream that can be subscribed to, enabling real-time updates across components.
- **Subject for Multicasting**: Makes use of Subject for multicasting, allowing multiple subscribers to listen and react to the same data stream.
- **Seamless Communication**: Facilitates effortless communication between parent and child components or across sibling components without tight coupling.
- **Enhanced Decoupling**: Promotes a decoupled architecture by enabling components to communicate through a shared service, making the code more maintainable.
- **Reactive Programming**: Follows reactive programming principles, allowing developers to easily handle events or changes in data state.
- **Error Handling**: Built-in mechanisms to manage errors within the data streams, ensuring a smooth experience for users.
- **Flexible Integration**: Can be easily integrated into existing components or services, enhancing the overall functionality without significant overhead.