Java Utililty Methods String Pad Zero

List of utility methods to do String Pad Zero

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Description

The list of methods to do String Pad Zero are organized into topic(s).

Method

StringzeroPad(final String s, final int fieldLength)
Prepend the given string with zeros. 
return characterPad(s, fieldLength, '0', false);
StringzeroPad(String encodeString, int padding)
Zero pad. 
try {
    int v = Integer.parseInt(encodeString);
    String format = "%0" + padding + "d";
    return String.format(format, v);
} catch (Exception e) {
    return encodeString;
StringzeroPad(String encodeString, int padding)
zero Pad 
try {
    int v = Integer.parseInt(encodeString);
    String pad = String.valueOf(v);
    while (pad.length() < padding) {
        pad = "0" + pad;
    return pad;
} catch (Exception e) {
...
Stringzeropad(String number, int size)
zeropad 
if (number.length() >= size)
    return number;
return repeat("0", size - number.length()) + number;
StringzeroPad(String s, int fieldLength)
Prepend the given string with zeros. 
char[] chArr = s.toCharArray();
int sLen = chArr.length;
if (sLen < fieldLength) {
    char[] out = new char[fieldLength];
    int zeros = fieldLength - sLen;
    for (int i = 0; i < zeros; i++) {
        out[i] = '0';
    for (int i = zeros; i < fieldLength; i++) {
        out[i] = chArr[i - zeros];
    return String.valueOf(out);
return s;
Stringzeropad(String s, int i)
zeropad 
return padleft(s, i, '0');
Stringzeropad(String s, int len)
left pad with '0' 
return padleft(s, len, '0');
Stringzeropad(String s, int len)
left pad with '0' 
return padleft(s, len, '0');
StringzeroPad(String s, int len)
=====================================================================================
This method is used to add padding "0" before a string so that the string has the expected length. 
String result = s;
for (int i = s.length(); i < len; i++)
    result = "0".concat(result);
return result;
StringzeroPad(String s, int length)
Pad string with leading zeros. 
for (int i = s.length(); i < length; i++) {
    s = "0" + s;
return s;