Java Utililty Methods Double Number Readable Format

List of utility methods to do Double Number Readable Format

  1. HOME
  2. Java
  3. D
  4. Double Number Readable Format

Description

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

Method

StringhumanBytes(double bytes)
humanBytes formats bytes as a human readable string. 
int base = 1024;
String[] pre = new String[] { "k", "m", "g", "t", "p", "e" };
String post = "b";
if (bytes < (long) base) {
    return String.format("%.2f b", bytes);
int exp = (int) (Math.log(bytes) / Math.log(base));
int index = exp - 1;
...
StringhumanBytes(double value)
human Bytes 
String suffix = " B";
if (value > 1024) {
    value /= 1024;
    suffix = " KB";
if (value > 1024) {
    value /= 1024;
    suffix = " MB";
...
StringhumanReadableNumber(double n)
human Readable Number 
if (n >= 1e9) {
    return String.format("%d billion", (Math.round(n / 1e9)));
} else if (n >= 1e6) {
    return String.format("%d million", (Math.round(n / 1e6)));
} else if (n >= 1e3) {
    return String.format("%d thousand", (Math.round(n / 1e3)));
} else if (n >= 1) {
    return String.format("%d", (Math.round(n)));
...
StringhumanReadableUnits(double bytes, boolean internationalSystemOfUnits)
human Readable Units 
int unit = internationalSystemOfUnits ? 1000 : 1024;
if (bytes <= 0) {
    return ""; 
} else if (bytes < unit) {
    return "B";
int exp = (int) (Math.log(bytes) / Math.log(unit));
String pre = (internationalSystemOfUnits ? "kMGTPEZY" : "KMGTPEZY").charAt(exp - 1) + "";
...
StringhumanSize(double size)
human Size 
if (size >= (1L << 40))
    return String.format("%.1fT", size / (1L << 40));
if (size >= (1L << 30))
    return String.format("%.1fG", size / (1L << 30));
if (size >= (1L << 20))
    return String.format("%.1fM", size / (1L << 20));
if (size >= (1L << 10))
    return String.format("%.1fK", size / (1L << 10));
...
StringtoMB(double inB)
to MB 
if (inB < 0)
    return "-";
return String.format("%.0f", inB / (1024 * 1024));
doubletoMB(double n)
to MB 
return toKB(n) / 1024;