Java API Tutorial - Java SecureRandom.nextBytes(byte[] bytes)

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Syntax

SecureRandom.nextBytes(byte[] bytes) has the following syntax.

public void nextBytes(byte[] bytes)

Example

In the following code shows how to use SecureRandom.nextBytes(byte[] bytes) method.

/*from   w  ww.jav  a  2  s .  c  o  m*/

import java.security.SecureRandom;
import java.util.Arrays;

public class Main {
  public static void main(String[] argv) throws Exception {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    byte[] bytes = new byte[8];
    sr.nextBytes(bytes);
    System.out.println(Arrays.toString(bytes));
  }
}

The code above generates the following result.

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