For what purposes did you use multithreading in your projects?

In Java projects, multithreading was used to solve tasks where it is necessary to perform multiple operations simultaneously to improve the application's performance and responsiveness. The main goals:

• Handling parallel requests in server applications (e.g., web servers).
• Executing background tasks without blocking the main thread (e.g., data loading, file processing).
• Implementing asynchronous operations to enhance user experience.
• Parallel computations to speed up processing large volumes of data.

Example: in an order processing application, a separate thread can be launched to send notifications to clients so that the main thread is not delayed.

new Thread(() -> {
    // Sending email notification
    sendEmailNotification(order);
}).start();

Thus, multithreading helps to efficiently utilize resources and improve application performance.