What is the main role of the Bridge pattern and its advantages in system design?

Threads allow multiple parts of a program to run simultaneously, which increases efficiency and responsiveness of applications.

In Android, threads are used for:

• Performing long-running operations (such as network requests, database work) in the background so as not to block the main (UI) thread and freeze the interface.
• Parallel data processing, which speeds up task execution.

The main thread is responsible for rendering the interface and handling user events. If heavy operations are performed on it, the application will become sluggish.

Example: downloading an image from the internet in a separate thread to keep the UI responsive.

new Thread(() -> {
    Bitmap image = downloadImage(url);
    runOnUiThread(() -> imageView.setImageBitmap(image));
}).start();

Thus, threads help organize asynchronous and parallel task execution, improving performance and user experience.