qqq

package ex2;

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

public class Ayy {

    public static void main(String[] args) throws FileNotFoundException {
        ArrayList<String> allWords = new ArrayList<String>();
        Scanner input = new Scanner(new File("devoir1/ex2/proust.txt"));

        while(input.hasNext())
        {
            String word = input.next();
            allWords.add(word);
        }

        //1)
        for(String word : allWords)
            System.out.print(word+" ");

        System.out.println();

        //2)
        for(int i=0;i<allWords.size();i++) {
            for(int j=0;j<allWords.get(allWords.size()-i-1).length();j++)
             System.out.print(allWords.get(allWords.size()-i-1).charAt(allWords.get(allWords.size()-i-1).length()-j-1));
            System.out.print(" ");
        }

        System.out.println();

        //3)
        for(String word : allWords)
        {
            if(word.endsWith("s"))
            {
                System.out.print(word.toUpperCase()+" ");
                continue;
            }
            System.out.print(word+" ");
        }

        System.out.println();

        //4)
        for(String word : allWords)
        {
            if(word.endsWith("s"))
                continue;
            System.out.print(word+" ");
        }
    }

}