private static final Random RANDOM = new Random();

    // 生成指定范围的随机整数
    public static int generateRandomInt(int min, int max) {
        return RANDOM.nextInt(max - min + 1) + min;
    }
    
    public static void main(String[] args) {
        Integer count = 5;
        Integer randomInt = generateRandomInt(1, count);
        System.out.println("生成的随机数是："+randomInt);
    }

结果