Java Utililty Methods Hex Calculate

List of utility methods to do Hex Calculate

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Description

The list of methods to do Hex Calculate are organized into topic(s).

Method

StringtoHex(long i, int r0, boolean r1)
Converts a number to a hex value 
String h = Long.toHexString(i).toUpperCase();
while (h.length() < r0 && r1) {
    h = 0 + h;
return (r1 ? "0x" : "") + h;
StringtoHex(long l, int length)
Converts the given long to a hexadecimal string of length characters. 
return String.format("%" + length + "s", Long.toHexString(l)).replace(' ', '0');
StringtoHex(Long value, int charCount)
Return a number as hex value with specified char count. 
String s = Long.toHexString(value).toUpperCase();
while (s.length() > charCount) {
    s = s.substring(1);
if (s.length() < charCount) {
    int diff = charCount - s.length();
    for (int i = 0; i < diff; i++)
        s = "0" + s;
...
StringtoHex(long value, int length)
Converts a long value to an HEX string.
return String.format("%0" + length + "X", value);
StringtoHex(String color)
Sends a colour to a hex 
if (color == null) {
    return "00";
Integer N;
N = Integer.parseInt(color);
if (N == 0) {
    return "00";
N = Math.max(0, N);
N = Math.min(N, 255);
N = Math.round(N);
char s = chars.charAt((N - N % 16) / 16);
char s1 = chars.charAt(N % 16);
return "" + Character.toString(s) + Character.toString(s1);
StringtoHex(String in, boolean javaStyle)
to Hex 
StringBuilder result = new StringBuilder();
for (int i = 0; i < in.length(); ++i) {
    result.append(toHex(in.charAt(i), javaStyle));
return result.toString();
StringtoHEX(String ostr)
to HEX 
StringBuffer rst = new StringBuffer();
for (int i = 0; i < ostr.length(); i++) {
    rst.append(Integer.toHexString(ostr.charAt(i)).toUpperCase());
return rst.toString();
StringtoHex(String source)
Outputs Unicode codepoint representation. 
StringBuilder sb = new StringBuilder();
for (char ch : source.toCharArray()) {
    sb.append("U+").append(padLeft(ch, 4));
return sb.toString();
StringtoHex(String str)
to Hex 
StringBuffer buff = new StringBuffer();
for (int i = 0; i < str.length(); i++) {
    if (Character.isLetter(str.charAt(i))
            || Character.isDigit(str.charAt(i))) {
        buff.append(str.charAt(i));
    } else {
        buff.append("\\u00");
        buff.append(Integer.toHexString(str.charAt(i)));
...
StringtoHex(String string)
to Hex 
char[] chars = string.toCharArray();
StringBuilder buf = new StringBuilder();
for (char c : chars) {
    buf.append(Integer.toHexString(c).toUpperCase());
return buf.toString();