Java Utililty Methods Random Byte

byte createRandomByte()
create Random Byte

return (byte) (Math.random() * 255);

byte generateRandomByte()
generate Random Byte

return (byte) (Math.random() * 0xFF);

String rand(int bit)
rand

if (bit < 1) {
 return "";
Random random = new Random();
Double randNumber = random.nextDouble();
return randNumber.toString().split("\\.")[1].substring(0, bit);

int rand(int lbound, int ubound)
rand

return (int) ((rand.nextDouble() * (ubound - lbound + 1)) + lbound);

int rand(int lo, int hi)
rand

int n = hi - lo + 1;
int i = rn.nextInt() % n;
if (i < 0) {
 i = -i;
return lo + i;

int rand(int lo, int hi)
rand

java.util.Random rn = new java.util.Random();
int n = hi - lo + 1;
int i = rn.nextInt(n);
if (i < 0)
 i = -i;
return lo + i;

int rand(int lo, int hi)
Returns a random number that falls within the specified range

int n = hi - lo + 1;
int i = rn.nextInt() % n;
if (i < 0) {
 i = -i;
return lo + i;

int Rand(int lo, int hi)
Returns an integer random number uniformly distributed between lo and hi .

Random rn2 = new Random();
int n = hi - lo + 1;
int i = rn2.nextInt(n);
if (i < 0) {
 i = -i;
return lo + i;

int rand(int max)
Get a random integer less than a given value.

return randomSet.nextInt(max);

byte randByte()
rand Byte

return (byte) ((int) (Math.random() * s_RAND_MAX) & 0xff);