java 猜数字( random scanner );

/* 猜数字 */
public class Demo04Random {
    public static void main(String[] args) {
        Random random = new Random();
        int constNum = random.nextInt(9) + 1;
        Scanner scanner = new Scanner(System.in);
        System.out.println("please input a number ===> " );
        int iptNum = scanner.nextInt();
        while(iptNum != constNum) {
            if(iptNum > constNum) System.out.println("猜大了");
            if(iptNum < constNum) System.out.println("猜小了");
            System.out.println("please input number ===> " );
            iptNum = scanner.nextInt();
        }
        System.out.println("game over, constNum ===> " + constNum);
    }
}