package t0806;

import java.io.*;

import java.util.regex.*;

public class zhengzehua_test {

 /**

  * @param args

  */

 public static void main(String[] args) {

  // TODO Auto-generated method stub

  try {

   System.out.println("请输入第一个数字:");

   BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

   String num1 = reader.readLine();

   while(!num1.matches("\\d+"))

   {

   System.out.println("输入的不是数字，请重新输入");

   num1 = reader.readLine();

   }

   System.out.println("请输入第二个数字:");

   String num2 = reader.readLine();

   while(!Pattern.compile("[0-9]*").matcher(num2).matches())

   {

   System.out.println("输入的不是数字，请重新输入");

   num2 = reader.readLine();

   }

   int result = Integer.parseInt(num1) * Integer.parseInt(num2);

   System.out.println("乘积是："+ result);

   } catch (IOException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

   }

 }

}