| | |
| | | import java.util.Iterator; |
| | | import java.util.List; |
| | | import java.util.Optional; |
| | | import java.util.concurrent.ThreadLocalRandom; |
| | | import java.util.function.BiConsumer; |
| | | import java.util.function.Function; |
| | | import java.util.Map; |
| | |
| | | return processed; |
| | | } |
| | | |
| | | public static String randomNumbers(int length) { |
| | | String baseString = "0123456789"; |
| | | |
| | | if (length < 1) { |
| | | length = 1; |
| | | } |
| | | |
| | | StringBuilder sb = new StringBuilder(length); |
| | | int baseLength = baseString.length(); |
| | | |
| | | for(int i = 0; i < length; ++i) { |
| | | int number = ThreadLocalRandom.current().nextInt(baseLength); |
| | | sb.append(baseString.charAt(number)); |
| | | } |
| | | |
| | | return sb.toString(); |
| | | } |
| | | |
| | | } |