What are some common applications of scheduled tasks in Java?

Some common scenarios where Java scheduled tasks are used include:

1. Scheduled data backup: You can use scheduled tasks to back up data in the database regularly to a specified location, ensuring the security and reliability of the data.
2. Scheduled data synchronization: If there are multiple data sources that need to sync data, using scheduled tasks to regularly synchronize data ensures data consistency.
3. Scheduled task scheduling: Scheduled tasks can be used to schedule and execute repetitive and time-sensitive tasks, such as sending emails at regular intervals or generating reports on a scheduled basis.
4. Monitoring scheduled tasks: You can use scheduled tasks to monitor various metrics and statuses in the system, such as server load, usage of database connection pools, etc., in order to promptly identify and address potential issues.
5. Scheduled cache refresh: Utilize scheduled tasks to regularly refresh the cache, ensuring the timeliness and accuracy of cached data.

In general, Java scheduled tasks are suitable for tasks that require periodic or regular execution, and can improve the efficiency, stability, and sustainability of the system.