How to convert number into K thousands M million and B billion suffix in jsp

Question

How can i convert number into K thousands M million and B billion suffix in jsp

e.g

1111 as 1.111 K etc

Answer 1

Adapting the answer from over here it should look something like

public static String withSuffix(long count) {
    if (count < 1000) return "" + count;
    int exp = (int) (Math.log(count) / Math.log(1000));
    return String.format("%.1f %c",
                         count / Math.pow(1000, exp),
                         "kMGTPE".charAt(exp-1));
}

---

Test code:

for (long num : new long[] { 0, 27, 999, 1000, 110592,
                             28991029248L, 9223372036854775807L })
   System.out.printf("%20d: %8s%n", num, withSuffix(num));

Output:

                   0:        0
                  27:       27
                 999:      999
                1000:    1.0 k
              110592:  110.6 k
         28991029248:   29.0 G
 9223372036854775807:    9.2 E

Answer 2

//To remove zero from 1.0k

public static String coolNumberFormat(long count) {
        if (count < 1000) return "" + count;
        int exp = (int) (Math.log(count) / Math.log(1000));
        DecimalFormat format = new DecimalFormat("0.#");
        String value = format.format(count / Math.pow(1000, exp));
        return String.format("%s%c", value, "kMBTPE".charAt(exp - 1));
    }