import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;

/* Prints out all the words in words.txt, where any word that ends in "s"
 * is completely capitalized. */
public class CapitalizeEndingInS {

    /* Reads in the words from the file filename */
    public static ArrayList<String> readFile(String filename) throws FileNotFoundException {
        Scanner input = new Scanner(new File(filename));
        ArrayList<String> words = new ArrayList<String>();
        while (input.hasNext()) {
            String word = input.next();
            words.add(word);
        }
        return words;
    }

    public static void main(String[] args) throws FileNotFoundException {
        ArrayList<String> list = readFile("words.txt");

        /* Print out all the words in list, but make sure to capitalize
         * any word ending in "s" */
        for (int i=0; i < list.size(); i++) {
            if (list.get(i).endsWith("s")) {
                System.out.println(list.get(i).toUpperCase());
            }  
            else {
                System.out.println(list.get(i));
            }
        }
    }
}