Java Utililty Methods Integer to Hex

List of utility methods to do Integer to Hex

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Description

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

Method

StringintToHex(int i)
Convert an int to a hex representation. 
return Integer.toHexString(i);
StringintToHex(int i)
int To Hex 
return String.format("0x%08X", i);
StringIntToHex(int i, int length)
Int To Hex 
String temp = Integer.toHexString(i);
while (temp.length() < length * 2) {
    temp = "0" + temp;
return temp;
StringintToHex(int id)
int To Hex 
if (id < 0x10) {
    return "0" + Integer.toHexString(id);
} else {
    return Integer.toHexString(id);
StringintToHex(int num)
Int to hex. 
char[] chars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
int i1 = num / 16;
int i2 = num % 16;
StringBuffer ret = new StringBuffer();
ret.append(chars[i1]);
ret.append(chars[i2]);
return ret.toString();
StringintToHex(int val)
Converts an int to a hex String. 
String hex = Integer.toHexString(val);
if (hex.length() >= 8) {
    return hex.substring(hex.length() - 8);
return String.format("%8s", hex).replace(' ', '0');
StringintToHex(int val, char delim)
int To Hex 
byte[] bytes = new byte[4];
for (int i = 3; i >= 0; i -= 1) {
    bytes[3 - i] = (byte) ((val >>> (i * 8)) & 0xFF);
return bytesToHex(bytes, delim);
StringBufferintToHex(int val, StringBuffer sb)
int To Hex 
sb.append(HEX_DIGITS[(val >> 28) & 0xf]);
sb.append(HEX_DIGITS[(val >> 24) & 0xf]);
sb.append(HEX_DIGITS[(val >> 20) & 0xf]);
sb.append(HEX_DIGITS[(val >> 16) & 0xf]);
sb.append(HEX_DIGITS[(val >> 12) & 0xf]);
sb.append(HEX_DIGITS[(val >> 8) & 0xf]);
sb.append(HEX_DIGITS[(val >> 4) & 0xf]);
sb.append(HEX_DIGITS[val & 0xf]);
...
StringintTohex2(int value)
int Tohex 
char hex2[] = { Character.forDigit((value >> 4) & 0x0F, 16), Character.forDigit(value & 0x0F, 16) };
String hex2Str = new String(hex2);
return hex2Str.toUpperCase();
StringintToHex8(int value)
int To Hex 
return String.format("%08X", value);