Java Utililty Methods Random Byte Array

List of utility methods to do Random Byte Array

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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;