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

voidint2hex(int a, StringBuffer str)
inthex 
str.append(Integer.toHexString(a));
Stringint2hex(int i)
inthex 
String s = Integer.toHexString(i / 16) + Integer.toHexString(i % 16);
return s.toUpperCase();
charint2hex(int i)
Converts integer digit to heck char. 
return HEX_CHARS[i];
charint2HexChar(int val)
int Hex Char 
if (val >= 0 && val < 10) {
    return (char) (val + '0');
if (val >= 10 && val < 16) {
    return (char) (val + 'a' - 10);
return (char) -1;
char[]int2HexChars(final int data)
Method to generate the hexadecimal character presentation of an integer This call is equivalent to HexUtils#int2HexChars(int,char[],int) with parameters (data, null, 0) 
return int2HexChars(data, new char[8], 0);
Stringint2HexString(final int i)
Formats an integer as a hex string of little-endian, non-zero-padded bytes. 
return bytes2HexString(asByteArray(i >>> 24, i >>> 16, i >>> 8, i));
Stringint2HexString(int n)
int Hex String 
return Integer.toHexString(n).toUpperCase();
Stringint2hexString(int x)
inthex String 
String s = "";
for (int ii = 0; ii < 8; ii++) {
    s = hex_digit[(x & (15 << (ii * 4))) >>> (ii * 4)] + s;
return s;
voidint2HexString(StringBuilder buf, int value)
This method avoids the use on Integer.toHexString, since this class may be used during the boot-phase when the Integer class in not yet initialized. 
int rem = value & 0x0F;
int q = value >>> 4;
if (q != 0) {
    int2HexString(buf, q);
if (rem < 10) {
    buf.append((char) ('0' + rem));
} else {
...
Stringint2HexZeroPad(int i)
int Hex Zero Pad 
String hex = int2Hex(i);
if (hex.length() % 2 != 0) {
    hex = "0" + hex;
return hex;