Here is an example of using the TTLLLayout class from the logback-classic library in Java:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.FileAppender;
import ch.qos.logback.core.encoder.Encoder;
import ch.qos.logback.core.spi.ContextAwareBase;
import ch.qos.logback.core.spi.LifeCycle;

public class LogbackExample {
  public static void main(String[] args) {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    FileAppender<ILoggingEvent> fileAppender = new FileAppender<>();
    fileAppender.setContext(context);
    fileAppender.setFile("logfile.log");
    
    TTLLLayout layout = new TTLLLayout();
    Encoder<ILoggingEvent> encoder = new LayoutWrappingEncoder<>(layout);
    fileAppender.setEncoder(encoder);
    fileAppender.start();

    Logger logger = LoggerFactory.getLogger(LogbackExample.class);
    logger.addAppender(fileAppender);
    
    logger.info("This is an informational message");
    logger.debug("This is a debug message");
    logger.error("This is an error message", new Exception("This is an exception"));
  }
}

This example creates a logger for the LogbackExample class and sets up a file appender using an TTLLLayout layout. The log messages will be written to the file logfile.log in the format defined by the TTLLLayout.

Please note that the Class TTLLLayout is not a part of logback libraries, this is an custom class, not present in logback libraries by default.