```xml <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.32</version> </dependency> ``` ```java import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class MyClass { private static final Logger logger = LoggerFactory.getLogger(MyClass.class); public void doSomething() { logger.debug("Debug message"); logger.info("Info message"); logger.error("Error message"); } } ``` ```xml <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.6</version> </dependency> ``` ```xml <configuration> <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%-5level [%thread] %logger{0}: %message%n</pattern> </encoder> </appender> <root level="INFO"> <appender-ref ref="CONSOLE" /> </root> </configuration> ```