NumbersAbbreviationHelper

/**
 * Created by Elijah Saounkine
 * Modified by Hani
 */
 
public class NumbersAbbreviationHelper {
    private char[] c = new char[]{'K', 'M', 'B', 'T'};

    public String makeItFriendly(double n) {
        return makeItFriendly(n, 0);
    }

    private String makeItFriendly(double n, int iteration) {
        if (n < 1000)
            return String.format("%s", (long) n);
        double d = ((long) n / 100) / 10.0;
        boolean isRound = (d * 10) % 10 == 0;
        return (d < 1000 ? ((d > 99.9 || isRound || (d > 9.99) ? (int) d * 10 / 10 : d + "") + "" + c[iteration]) : makeItFriendly(d, iteration + 1));
    }
}