C0unt1ng L3tt3rs

Stuff.java

public class Stuff {
    
    public static void main(String[] args) {
        String text = "más letras";
        
        int[] counts = new int[26];
        
        for (int z=0; z<26; z++) {
            for (int q=0; q<text.length(); q++) {
                char here = text.toLowerCase().charAt(q);
                char letter = (char)('a' + z);
                
                if (here == letter) {
                    counts[z]++;
                }
            }
        }
        
        for (int i=0; i<26; i++) {
            if (counts[i] != 0) {
                System.out.println((char)('a' + i) + ": " + counts[i]);
            }
        }
    }
}