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);
}
}