1 package edu.sjtu.erplab.io;
 2 
 3 import java.util.Random;
 4 
 5 public class RandomTest {
 6     public static void main(String[] args) {
 7         int max=20;
 8         int min=10;
 9         Random random = new Random();
10 
11         int s = random.nextInt(max)%(max-min+1) + min;
12         System.out.println(s);
13     }
14 }