Java--基础--字符串中提取数字

package com.test;


import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class MyTest {
public static void main(String[] args) {
String str = "3dsfdsdf999sd9a9dasd3";
String regex = "\\d*";
Pattern p = Pattern.compile(regex);


Matcher m = p.matcher(str);


while (m.find()) {
if (!"".equals(m.group()))
System.out.println("come here:" + m.group());
}
}
}