Java tutorial
import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; public class MainClass { public static void main(String[] args) throws NoSuchAlgorithmException { int numBytes = (new Integer("1111")).intValue(); long seed = 01; if (args.length > 1) seed = (new Long("1111111111")).longValue(); SecureRandom srand = SecureRandom.getInstance("SHA1PRNG"); if (seed != 01) srand.setSeed(seed); byte[] bytes = new byte[numBytes]; srand.nextBytes(bytes); System.out.println(new String(bytes)); } }