Question

怎么用java把输入的字符串中的数字提取出来

怎么用java把输入的字符串中的数字提取出来，比如输入的是a0s9ad1sj5a0h1fus6a，输出的结果是0915016。谢谢了……
哪个发错了~~见谅啊……但还是希望大家帮帮我……谢谢了

Answer 1

class Num
{
public static void main(String[] args)
{
System.out.println("Enter a mass string with digit in.");
String s = Console.readString();
//String s = "a0s9ad1sj5a0h1fus6a";
char [] mass = s.toCharArray();
String d ="" ;
for(int i=0; i<mass.length; i++)
{
if (Character.isDigit(mass [i]))
{
d = d + mass [i];
}
}
System.out.println();
System.out.print("The number is:");
System.out.println(d);
}
}

Answer 2

用正则表达式吧