| | |
| | | |
| | | /* |
| | | public static void main(String[] args) { |
| | | System.out.println(CreateRandom.Random(1, 0)); |
| | | System.out.println(CreateRandom.Random(2, 0)); |
| | | System.out.println(CreateRandom.Random(3, 0)); |
| | | System.out.println(CreateRandom.Random(4, 0)); |
| | | System.out.println(CreateRandom.Random(5, 0)); |
| | | System.out.println(CreateRandom.Random(100, 0)); |
| | | System.out.println(CreateRandom.Random(1256, 1234)); |
| | | // System.out.println(CreateRandom.random(1, 0)); |
| | | // System.out.println(CreateRandom.random(2, 0)); |
| | | // System.out.println(CreateRandom.random(3, 0)); |
| | | // System.out.println(CreateRandom.random(4, 0)); |
| | | // System.out.println(CreateRandom.random(5, 0)); |
| | | // System.out.println(CreateRandom.random(100, 0)); |
| | | // System.out.println(CreateRandom.random(1256, 1234)); |
| | | System.out.println("======================="); |
| | | for(int i = 0 ; i < 100; i++){ |
| | | System.out.println(create_between(10, 100)); |
| | | } |
| | | } |
| | | */ |
| | | |
| | | |
| | | /** |
| | | * 4位随机数据 |
| | |
| | | if(max - min < min/2){ |
| | | return min ; |
| | | } |
| | | String minStr = String.valueOf(min) ; |
| | | int len = minStr.length() ; |
| | | char minFirst = minStr.charAt(0) ; |
| | | double d = Math.random(); |
| | | d = d * 10000000 ; |
| | | String s = String.valueOf(d); |
| | | s = minFirst + s ; |
| | | int len = String.valueOf(min).length() ; |
| | | String s = String.valueOf(Math.random() * 10000000); |
| | | s = s.substring(0 ,len) ; |
| | | int n = Integer.parseInt(s) ; |
| | | if(n < min || n > max){ |