I need help to print the outcome

import java.util.Scanner;

class Lesson_33_Activity_One {



    public static void upper(String[] a){
        for (int i=0; i < a.length; i++) {
            a[i] = a[i].toUpperCase();
        }
    }

    public static void main(String[] args)
     {
        String[] a = {"meme","pepe"};
        upper(a);
    }
}