Here is an example of how you might use the ReversedLinesFileReader class from the org.apache.commons.io package in Java:

import java.io.File;
import java.io.IOException;
import org.apache.commons.io.input.ReversedLinesFileReader;

public class MyClass {

    public void doSomethingWithReversedLinesFileReader() throws IOException {
        // Create a File object
        File file = new File("example.txt");

        // Open a reversed lines file reader
        ReversedLinesFileReader reader = new ReversedLinesFileReader(file);

        // Read lines from the file in reverse order
        String line = reader.readLine();
        while (line != null) {
            System.out.println(line);
            line = reader.readLine();
        }

        // Close the reader
        reader.close();
    }
}

The ReversedLinesFileReader class reads a file line by line in reverse order. It is useful for reading large log files or other files where the most recent information is at the end of the file. In this example, we opened a ReversedLinesFileReader on a file called "example.txt" and read the lines in the file in reverse order.

The ReversedLinesFileReader class also provides a getLineNumber() method to get the current line number, and a skipLine() method to skip a specific number of lines.

It is important to close the ReversedLinesFileReader after you are done with it to release the resources associated with the file.

Note that the ReversedLinesFileReader reads the file from the end so it is less efficient than a BufferedReader but it allows to read the last lines of large files in a fast way.