Formatting a number count to an abbreviated form with the appropriate unit suffix.

TextUtils.java

/**
 * Formats a number count to an abbreviated form with the appropriate unit suffix.
 *
 * @param count    number count
 * @param <T>      type of number
 * @return An abbreviated count with the appropriate unit suffix.
 */
public static <T extends Number & Comparable<? super T>> String shortCount(T count) {
    String base = "##0";
    String[] suffixes = {"'K'", "'M'", "'B'"};
    BigDecimal decimalCount = new BigDecimal(count.toString());
    for (int i = suffixes.length - 1; i >= 0; i--) {
        BigInteger truncCount = decimalCount.scaleByPowerOfTen(-3 * (i + 1)).toBigInteger();
        if (truncCount.compareTo(BigInteger.ZERO) > 0) {
            return new DecimalFormat(base + suffixes[i]).format(truncCount);
        }
    }
    return new DecimalFormat(base).format(count);
}