Transforms bytes into human readable byte count eg. - Java File Path IO

Java examples for File Path IO:Byte Array

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Description

Transforms bytes into human readable byte count eg.

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        long bytes = 2;
        boolean si = true;
        System.out.println(humanReadableByteCount(bytes, si));
    }//  w  ww  .  ja v  a  2s  .c o  m

    /**
     * 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 ? "" : "i");
        return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
    }
}

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