Java编程实现生成给定范围内不重复随机数的方法小结

package test;import java.util.SortedSet;import java.util.TreeSet;public class MathRandom {  static SortedSet set = new TreeSet();  public static int randomSet(double m, double n) {    int num = (int) m + (int) (Math.random() * (n - m));    return num;  }  public static void shuangSe(int num1, int num2) {    for (int i = 0; i < num1; i++) {      set.add(randomSet(1, 33));    }    if (set.size() < num2) {      shuangSe(num2 - set.size(), num2);    }  }  public static void main(String[] args) {    shuangSe(6, 6);    System.out.print(set);    System.out.println("  "+randomSet(1,16));  }}