将字节转换为人类可读的字节计数。

/**NowJava.com - 时  代  Java**/


//package com.nowjava;


public class Main {

    public static void main(String[] argv) throws Exception {

        long bytes = 2;

        boolean si = true;

        System.out.println(humanReadableByteCount(bytes, si));

    }


    /**

     * Transforms bytes into human readable byte count eg.  110592:   110.6 kB (si = true)  108.0 KiB (si =false)

     * @param bytes

     * @param si

     * @return bytes in readable count and unit

     */

    public static String humanReadableByteCount(long bytes, boolean si) {

        int unit = si ? 1000 : 1024;

        if (bytes < unit)

            return bytes + " B";

        int exp = (int) (Math.log(bytes) / Math.log(unit));

        String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1)

                + (si ?