package homework;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
int number1 = (int) (System.currentTimeMillis() % 10);//从1970年1月1日开始到今天现在这个时刻的毫秒值
int number2 = (int) (System.currentTimeMillis() / 7 % 10);//从1970年1月1日开始到今天现在这个时刻的毫秒值
System.out.println(number1 + " . " + number2);
Scanner scan = new Scanner(System.in);
System.out.println("what is" + number1 + "+" + number2 + "?");
int answer = scan.nextInt();
System.out.println(number1 + "+"+number2 + "=" + answer + "is"+ (number1 + number2 == answer));
//System.out.println(System.currentTimeMillis());
}
}
![](https://images2017.cnblogs.com/blog/1236542/201711/1236542-20171113101301827-1008993512.png)
![](https://images2017.cnblogs.com/blog/1236542/201711/1236542-20171113101311374-1400141123.png)