华为笔试题：十六进制的数值字符串，输出该数值的十进制字符串

0xA

10

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in=new Scanner(System.in);
while(in.hasNext()){
String firstnum=in.next().substring(2);
//System.out.println(firstnum);
String finalnum=Integer.valueOf(firstnum,16).toString() ;
System.out.println(finalnum);
}
}

}