java生成指定范围的随机数

import java.util.Random;

public class RandomTest {
    public static void main(String[] args) {
        int max=20;
        int min=10;
        Random random = new Random();

        int s = random.nextInt(max)%(max-min+1) + min;
        System.out.println(s);
    }
}

package com;

import java.util.Random;

public class RandomTest {
    public static void main(String[] args) {
        int max = 80;
        int min = 60;
        int s = (int) (Math.random() * (max - min) + min);
        System.out.println(s);
    }
}