用法如下：
String regex="1[35789]\\d{9}"//正则表达式
Pattern pattern =Pattern.complise(regex);
Matcher matcher=pattern.matcher(s);
while(matcher.find()){
System.out.println(matcher.group());
}
代码如下：
package com.正则表达式; import java.util.regex.Matcher; import java.util.regex.Pattern; public class GetSpecifiedCharacter { public static void main(String[] args) { //从字符串中提取指定的字符串 String s="ssfsfhshfsfjjs13293016789yfdiyifdsafyasif"; String regex="[1][34579]\\d{9}"; Pattern pattern =Pattern.compile(regex); Matcher matcher=pattern.matcher(s); while(matcher.find()){ System.out.println(matcher.group()); } } }
输出结果：13293016789
