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

StringtoHexString(String s)
to Hex String 
String str = "";
for (int i = 0; i < s.length(); i++) {
    int ch = s.charAt(i);
    String s4 = Integer.toHexString(ch);
    str = str + s4;
return str;
StringtoHexString(String s)
to Hex String 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
    char ch = s.charAt(i);
    if (i > 0) {
        sb.append(' ');
    if (ch < 128) {
        sb.append(ch);
...
StringtoHexString(String s)
to Hex String 
byte[] baKeyword = new byte[s.length() / 2];
for (int i = 0; i < baKeyword.length; i++) {
    try {
        baKeyword[i] = (byte) (0xff & Integer.parseInt(s.substring(i * 2, i * 2 + 2), 16));
    } catch (Exception e) {
        e.printStackTrace();
try {
    s = new String(baKeyword, "utf-8");
} catch (Exception e1) {
    e1.printStackTrace();
return s;
String[]toHexString(String str)
to Hex String 
char[] chars = str.toCharArray();
String[] result = new String[chars.length];
for (int i = 0; i < chars.length; i++) {
    result[i] = Integer.toHexString((int) chars[i]);
return result;
StringtoHexString(String str)
to Hex String 
int hashCode = str.hashCode();
return toHexString(hashCode);
voidtoHexString(StringBuffer buffer, byte[] bytes, int numBytes)
to Hex String 
buffer.append('[');
if (bytes != null) {
    for (int i = 0; i < numBytes; i++) {
        String chars = Integer.toHexString(bytes[i] & 0xFF);
        if (chars.length() == 1) {
            buffer.append('0');
        buffer.append(chars);
...
StringtoHexString0x(byte[] byteArray)
to Hex Stringx 
if (byteArray == null) {
    return null;
return "0x" + toHexString(byteArray);
StringtoHexString2(int i)
to Hex String 
String zeros = "00000000000";
String hex = Integer.toHexString(i);
int len = hex.length();
if (len < 2)
    return zeros.substring(0, 2 - len) + hex;
else
    return hex.substring(0, 2);
StringtoHexString3(byte aByte)
to Hex String 
String str = Integer.toHexString(byteToInt(aByte));
String s = str.length() == 1 ? "0x0" + str : "0x" + str;
return s;
StringtoHexStringBE(char[] array)
to Hex String BE 
return toHexStringBE(array, 0, array.length);