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

StringFormatFileSize(String filesize)
Make file size format 
int len = 0;
int mok = 0;
int mod = 0;
String result = "";
String reverseResult = "";
String stringMok = "";
String reverseMok = "";
len = filesize.length();
...
StringformatFilesize(String filesize, int decimalPlaces)
Formats a file size string if it is a numeric representation stored in bytes. 
try {
    int multipleCount = 0;
    long filesizeValue = Long.parseLong(filesize);
    long filesizeRemainder = 0;
    while (filesizeValue > 1024 && multipleCount < filesizeSuffixes.length) {
        filesizeRemainder = filesizeValue % 1024;
        filesizeValue /= 1024;
        multipleCount++;
...
StringformatFileStats(final String label, final long fileCount, final Object rawSize)
Formats an object's file statistics for display. 
long size = 0;
if (rawSize != null) {
    if (rawSize instanceof Integer) {
        size = (Integer) rawSize;
    } else if (rawSize instanceof Long) {
        size = (Long) rawSize;
if (label == null || label.equals("") || label.equalsIgnoreCase("total")) {
    return String.format("%s in %s files", formatSize(size), fileCount);
return String.format("%s: %s in %s files", label, formatSize(size), fileCount);
StringformatGroup(String str, int groupSize, int lineBreak)
format Group 
StringBuffer buffer = new StringBuffer();
int line = 1;
buffer.append("/*  1 */ \"");
for (int i = 0; i < str.length(); i += groupSize) {
    buffer.append(str.substring(i, i + Math.min(str.length() - i, groupSize)));
    if ((i + groupSize) % lineBreak == 0) {
        buffer.append("\" +\n/* ");
        line++;
...
StringformatIndex(int index, int totalSize)
Format a number as String that can be always be large enough to hold "totalSize" digits. 
int digits = (int) (Math.ceil(Math.log(totalSize) / Math.log(10)) + .5);
String s = "" + index;
while (s.length() < digits) {
    s = "0" + s;
return s;
StringformatInt(int val, int size)
format Int 
String formatter = "%0" + size + "d";
return String.format(formatter, val);
StringformatRow(String[] values, int[] sizes)
Format row. 
return formatRow(" ", values, sizes);
StringformatSeperatorRow(int[] sizes)
Format seperator row. 
String[] values = new String[sizes.length];
for (int i = 0; i < values.length; i++) {
    values[i] = DASHES;
return formatRow(" ", values, sizes);
StringformatShortByte(long size)
format Short Byte 
return size + bytePostfix;
StringformatSize(double size)
format Size 
int i;
for (i = 0; size >= 1024 && i < 4; i++) {
    size /= 1024;
return (Math.round(size * 100.0) / 100.0) + " " + SIZE_UNITS[i];