How did you implement the logging system in your project?

To implement a logging system in a Java project, I usually use popular libraries such as Log4j or SLF4J with Logback.

Main steps:

1. Add the dependency to the project (for example, via Maven or Gradle).
2. Create a configuration file (log4j.properties or logback.xml), where I set up logging levels, message formats, and output (console, file).
3. In the code, create a logger:

private static final Logger logger = LoggerFactory.getLogger(MyClass.class);

4. Use the logger to record messages:

logger.info("Data processing started");
logger.error("Error connecting to the database", exception);

This approach allows centralized management of logs, filtering by level, and saving for later analysis.