Java Utililty Methods Random Byte Array

List of utility methods to do Random Byte Array

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Random Byte Array

Description

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

Method

byte[] generateRandomArray()
Generate random array.

int size = 20000;
byte[] byteArray = new byte[size];
for (int i = 0; i < size; i++) {
 byteArray[i] = (byte) (Math.random() * 127f);
return byteArray;

byte[] generateRandomBlob()
generate Random Blob

return generateRandomBlob(65536);

byte[] generateRandomByteArray(int length)
generate Random Byte Array

return generateRandomByteArray(length, false, (byte) 0);

byte[] generateRandomByteArray(int length)
generate Random Byte Array

byte[] line = new byte[length];
for (int i = 0; i < length; i++) {
 byte rand = (byte) ((int) (Math.random() * 255) - 128);
 line[i] = rand;
return line;

byte[] generateRandomByteArray(int length, boolean avoid, byte avoidByte)
Create an array of random bytes

byte[] line = new byte[length];
for (int i = 0; i < length; i++) {
 byte rand;
 do {
 rand = (byte) ((int) (Math.random() * 255) - 128);
 } while (avoid && rand == avoidByte);
 line[i] = rand;
return line;

byte[] generateRandomByteArray(int size)
generate Random Byte Array

return getRandomByteArray(size);

byte[] generateRandomByteArray(int size, Random rnd)
Return a bytearray of random data with specified size.

if (rnd == null) {
 rnd = new Random();
byte[] data = new byte[size];
rnd.nextBytes(data);
return data;

byte[] generateRandomBytes()
generate Random Bytes

int length = rng.nextInt(200);
return generateRandomBytes(length);

byte[] generateRandomBytes(final int pSize)
Generating random bytes.

final byte[] returnVal = new byte[pSize];
random.nextBytes(returnVal);
return returnVal;

byte[] generateRandomBytes(int n)
generate Random Bytes

byte[] bytes = new byte[n];
synchronized (tempFileRandom) {
 tempFileRandom.nextBytes(bytes);
return bytes;