Sort Strings Lexi

import java.util.*;
/**
 * Write a description of class tes here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class tes
{
    // instance variables - replace the example below with your own
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        System.out.println("hello enter first sentence");
        String f = keyboard.nextLine();
        System.out.println("hello enter second sentensce");
        String s = keyboard.nextLine();
        System.out.println("hello enter third sentensce");
        String l = keyboard.nextLine();
        //note that f stands for first, s for second, and l for last
        if(f.compareTo(s) > 0 && f.compareTo(l) < 0)
            System.out.println(f + " First sentence case 1");
        else if(f.compareTo(l) > 0 && f.compareTo(s) < 0)
            System.out.println(f + " First sentence case 2");
        else if (s.compareTo(f) > 0 && s.compareTo(l) < 0)
            System.out.print(s + " Second sentence case 1");
        else if (s.compareTo(l) > 0 && s.compareTo(f) < 0)
            System.out.print(s + " Second sentence case 2");
        else if (l.compareTo(s) > 0 && l.compareTo(f) < 0)
            System.out.println(l + " third sentence case 1");
        else if (l.compareTo(f) > 0 && l.compareTo(s) < 0)
            System.out.println(l + " third sentence case 2");
        //System.out.println(f.compareTo(s));
    }
}