public class Awesome {
    public static void main (String[] args){
        System.out.println(initializeRandomLetters(200, 'h'));
    }
    public static ArrayList<Character> initializeRandomLetters(int n, char asciiStart) {
        ArrayList<Character> randChars = new ArrayList<Character>();
        int asciiNum = asciiStart;

        for (int i = 0; i<n; i++){
            int randomNum = (int) (Math.random() * 33);
            char newAsciiChar = (char) (randomNum + asciiNum);
            randChars.add(newAsciiChar);
        }

        return randChars;
    }
}

Awesome.main(null)
[t, ‚, v, …, t, , m, ‡, €, †, v, ƒ, |, , v, {, }, t, u, t, †, |, i, ƒ, x, m, u, u, ƒ, v, †, o, o, q, i, i, x, l, u, p, ƒ, ‡, …, p, €, €, , , i, l, v, y, j, †, p, |, z, „, q, {, n, …, m, ƒ, m, w, †, , y, …, }, w, „, m, ‚, €, ‡, q, q, n, t, v, †, |, q, €, q, q, k, l, v, x, |, ~, r, m, m, n, r, k, s, z, ˆ, {, h, z, r, m, , €, |, ~, o, ‡, p, x, j, ‚, , x, , v, ‡, ˆ, |, k, y, m, t, {, ƒ, ‡, y, x, r, q, |, x, n, …, h, p, s, u, ‡, ‡, ‚, ‡, r, {, ƒ, }, y, {, r, ‡, y, q, j, „, , ~, q, p, n, ‚, €, ˆ, n, ˆ, l, ˆ, t, …, k, t, v, „, ~, „, p, v, t, k, j, y, ‡, , k, o, €, €, m, h, w, o, v, }, y, q]