Java Utililty Methods Byte Array Create

List of utility methods to do Byte Array Create

  1. HOME
  2. Java
  3. B
  4. Byte Array Create

Description

The list of methods to do Byte Array Create are organized into topic(s).

Method

byte[]toBytes(char c)
Converts a single (unicode) char to a byte-array. 
return new byte[] { (byte) (c & 0xff), (byte) ((c >> 8) & 0xff) };
byte[]toBytes(char value)
to Bytes 
byte[] bt = new byte[2];
for (int i = 0; i < bt.length; i++) {
    bt[i] = (byte) (value >>> i * 8);
return bt;
voidtoBytes(char[] cbuf, byte[] bs)
to Bytes 
for (int i = 0, j = 0; i < bs.length; i++, j++, j++) {
    bs[i] = (byte) ((hex2digit(cbuf[j]) << 4) | hex2digit(cbuf[j + 1]));
byte[]toBytes(char[] chars)
to Bytes 
byte[] ret = new byte[chars.length];
for (int i = 0; i < chars.length; i++) {
    ret[i] = (byte) chars[i];
return ret;
byte[]toBytes(final byte[] s, final int off, final int len)
to Bytes 
if (s.length < 2 || s[0] != '\\' || s[1] != 'x') {
    return toBytesOctalEscaped(s, off, len);
return toBytesHexEscaped(s, off, len);
byte[]toBytes(final long n)
Returns a 8-byte array built from a long. 
return toBytes(n, new byte[8]);
byte[]toBytes(final long val)
Converts a 32 bit value to an array of bytes. 
byte[] bytes = new byte[4];
bytes[3] = (byte) (val & 0xFF);
bytes[2] = (byte) ((val & 0xFF00) >>> 8);
bytes[1] = (byte) ((val & 0xFF0000) >>> 16);
bytes[0] = (byte) ((val & 0xFF000000) >>> 32);
return bytes;
byte[]toBytes(final String hexaString)
Convert a base 16 string into bytes. 
if (hexaString.length() % 2 == 1) {
    throw new IllegalArgumentException("String length must be even."); 
final byte[] bytes = new byte[hexaString.length() / 2];
for (int bi = 0, i = 0; bi < bytes.length; bi++) {
    int b = Character.digit(hexaString.charAt(i++), 16) << 4;
    b |= Character.digit(hexaString.charAt(i++), 16);
    bytes[bi] = (byte) b;
...
byte[]toBytes(final String str)
Converts a hex-encoded string to bytes. 
final int len = str.length();
if (len % 2 != 0) {
    throw new IllegalArgumentException("String '" + str + "'.length() % 2 != 0");
final byte[] buf = new byte[len / 2];
int idx = 0;
for (int i = 0; i < buf.length; i++) {
    final int b1 = charToOctet(str.charAt(idx++));
...
byte[]toBytes(final String text)
Convert String into byte array 
final byte[] bytes = new byte[text.length() + 1];
System.arraycopy(text.getBytes(), 0, bytes, 0, text.length());
bytes[text.length()] = '\0';
return bytes;