Java猜数字游戏，控制台输出

public static void main(String[] args) {
        int a = (int)(Math.random()*100);
        int b = 0;//初始分数
        Scanner scan = new Scanner(System.in);//扫描器
        System.out.println(a);
        System.out.println("只有十次机会哦");
        for (int i=0;i<10;i++){
            int aa = 1;
            System.out.println("请输入一个整数");
            int intput = scan.nextInt();//scan.nextInt()系统阻塞等待输入
            if (intput < a){
                System.out.println("猜小了");
            }else if (intput > a){
                System.out.println("猜大了");
            }else {
                System.out.println("猜对了");
                b+=10;//b=b+10
                a = (int)(Math.random()*100);
                System.out.println(a);
            }
            aa+=i;
            System.out.println("你输入了"+aa+"次");
        }
        System.out.println("你的游戏得分为:"+b+"分");
        System.out.println("游戏结束");
    }