>>419
見栄えはいまいちだが短くて済む方法
final static byte[] HEADER = "\uefbb\ubf50\u6f6b\u6572".getBytes("UTF-16BE");

見栄えは良いが若干効率悪い方法
static byte[] toByteArray(int... a) {
byte[] b = new byte[a.length];
for (int i = 0; i < a.length; i++) {
b[i] = (byte) a[i];
}
return b;
}
final static byte[] HEADER = toByteArray(0xef, 0xbb, 0xbf, 0x50, 0x6f, 0x6b, 0x65, 0x72);