Java Utililty Methods Long Number Readable Format

List of utility methods to do Long Number Readable Format

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Description

The list of methods to do Long Number Readable Format are organized into topic(s).

Method

StringbytesToHumanString(long bytes)
bytes To Human String 
if (bytes < 0) {
    throw new IllegalArgumentException("Negative argument: " + bytes);
if (bytes == 1) {
    return "1 byte";
} else if (bytes == 0) {
    return MessageFormat.format("0{1}", bytes, suffixes[0]);
int log = (int) Math.log10(bytes);
int pos = log / 3;
double scaled = bytes / Math.pow(10, pos * 3);
long rounded = Math.round(scaled);
double rounded2 = (double) Math.round(scaled * 10) / 10d;
if (pos == 0) {
    return MessageFormat.format("{0,number,0}{1}", rounded, suffixes[pos]);
} else if (rounded >= 1000) {
    scaled = scaled / 1000;
    pos = pos + 1;
    rounded2 = (double) Math.round(scaled * 10) / 10d;
    return MessageFormat.format("{0,number,0.0}{1}", rounded2, suffixes[pos]);
} else if (rounded2 < 10) {
    return MessageFormat.format("{0,number,0.0}{1}", rounded2, suffixes[pos]);
} else {
    return MessageFormat.format("{0,number,0}{1}", rounded, suffixes[pos]);
StringbytesToString(long bytes)
Convert a number of bytes into a human readable string 
if (bytes > 1024 * 1024 * 1024) {
    return new DecimalFormat("#.##").format((double) bytes / (1024.0 * 1024.0 * 1024.0)) + " GB";
if (bytes > 1024 * 1024) {
    return new DecimalFormat("#.##").format((double) bytes / (1024.0 * 1024.0)) + " MB";
if (bytes > 1024) {
    return new DecimalFormat("#.##").format((double) bytes / 1024.0) + " KB";
...
StringconvertBytes(long bytes)
Convert bytes in human readable format(means add KB, MB or GB according to the provided input. 
String val = "0";
if (bytes == 0) {
    return val;
long KILOBYTE = 1024L;
long MEGABYTE = 1024L * 1024L;
long GIGABYTE = 1024L * 1024L * 1024L;
DecimalFormat df = new DecimalFormat("0.00");
...
StringconvertBytes(long size)
convert Bytes 
if (size <= 0)
    return "0";
final String[] units = new String[] { "B", "kB", "MB", "GB", "TB" };
int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups];
StringconvertByteToGMKB(long bytes)
convert Byte To GMKB 
String gmkb = null;
DecimalFormat df = new DecimalFormat("0.##");
if (bytes < 1024) {
    gmkb = String.valueOf(bytes) + "B";
} else if (bytes >= 1024 && bytes < 1024 * 1024) {
    double kb = (double) bytes / 1024;
    gmkb = df.format(kb) + "K";
} else if (bytes >= 1024 * 1024 && bytes < 1024 * 1024 * 1024) {
...
StringconvertByteUnit(Long l)
Converts a given number to byte units, i.e. 
String s = null;
String[] unit = { "B", "KB", "MB", "GB", "TB" };
int i = 0;
if (l < 1024) {
    s = "" + l;
} else {
    float del = 1024.0f;
    float f = l;
...
StringconvertHumanSize(long byteSize)
Check whether file is executable according to its extenstion and executable extension name list from Edgenius configuaration. 
String unit = "";
float size = (float) byteSize;
if (size > 1024) {
    size = size / 1024;
    unit = "K";
if (size > 1024) {
    size = size / 1024;
...
StringconvertLongToMega(long value)
convert Long To Mega 
long megaValue = value / MEGA;
String result = Long.toString(megaValue) + " MB";
return result;
StringconvertMbIntoGb(long megaBytes)
convert Mb Into Gb 
String convertedVal = "0";
if (megaBytes == 0) {
    return convertedVal;
final double HUNDRED = 100.0;
final long DIVEDEBY = 1024L;
DecimalFormat df = new DecimalFormat("0.00");
if (megaBytes / DIVEDEBY > 0) {
...
StringformatBytes(long bts)
format Bytes 
long bt = bts % 1024;
long kb = (bts / 1024) % 1024;
long mb = bts / (1024 * 1024);
return ((mb > 0) ? (mb + "MB,") : "") + ((kb > 0) ? (kb + "KB,") : "") + ((bt > 0) ? (bt + "BYTES") : "");