Java tutorial
package org.apache.commons.crypto.random; import java.io.Closeable; /** * Version 1.0 * Created by lll on 17/9/4. * Description * copyright generalray4239@gmail.com */ public interface CryptoRandom extends Closeable { /** * Generates random bytes and places them into a user-supplied byte array. * The number of random bytes produced is equal to the length of the byte * array. * * @param bytes the byte array to fill with random bytes */ void nextBytes(byte[] bytes); }