Here is an example of using the ConsolePlugin and ConsolePluginAction classes from the logback-classic library in Java:

import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.util.StatusPrinter;
import ch.qos.logback.core.util.OptionHelper;

public class LogbackExample {
    public static void main(String[] args) {
        LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
        try {
            JoranConfigurator configurator = new JoranConfigurator();
            configurator.setContext(context);
            context.reset();
            configurator.doConfigure("logback.xml");
        } catch (JoranException je) {
            StatusPrinter.printInCaseOfErrorsOrWarnings(context);
        }

        // Create a new ConsolePluginAction object
        ConsolePluginAction action = new ConsolePluginAction();
        action.setContext(context);
        action.setScanPeriod("30 seconds");
        action.start();
        
        Logger logger = (Logger) LoggerFactory.getLogger(LogbackExample.class);
        logger.debug("This is a debug message");
        logger.info("This is an informational message");
        logger.error("This is an error message", new Exception("This is an exception"));
    }
}

This example uses the ConsolePlugin and ConsolePluginAction classes to start the logback interactive console. The ConsolePlugin allows for reconfiguration of logback at runtime via an interactive console.

The ConsolePluginAction sets the context and the scan period for the ConsolePlugin. The setScanPeriod("30 seconds") call tells the ConsolePlugin to scan for the commands every 30 seconds. The start() call starts the plugin.

This example is using basic configuration, however you can use this class in more complex scenarios by using different options and attributes.

Please keep in mind that the logback.xml should be placed in classpath to be loaded by JoranConfigurator and the ConsolePlugin

Please also keep in mind that using the Console plugin can open a security hole as it allows arbitrary code execution, as such it should not be used in production environments or on untrusted networks.