Java Utililty Methods File Size Readable Format

List of utility methods to do File Size Readable Format

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Description

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

Method

StringtoHumanReadableFileSize(long fileSize)
transforms the given file size in bytes into a human readable string like "15 MB" or "256 KB" 
for (int i = FILE_SIZE_NAMES.length - 1; i > 0; --i) {
    float thisValue = (float) Math.pow(1024, i);
    if (fileSize / thisValue > 1) {
        return String.format("%3.2f %s", fileSize / thisValue, FILE_SIZE_NAMES[i]);
return "0";
StringtoHumanReadableSize(final long bytes)
Returns a human readable value in storage units rounded up to two decimal places. 
if (bytes < BASE) {
    return bytes + " B";
final int baseValue = (63 - Long.numberOfLeadingZeros(bytes)) / 10;
return String.format("%.2f %sB", (double) bytes / (1L << (baseValue * 10)), " kMGTPE".charAt(baseValue));