java:正则匹配Pattern,Matcher

String s = "aa424fsfsd92lfjw2755097";
Pattern p = Pattern.compile("\\d+");
String sp[] = p.split(s);
for(int i=0; i<sp.length; i++)
{
System.out.println(sp[i] + "、");
}

//正则匹配
//String str = "皖A38595";
//String reg = ".\\w+\\d+";
String str = "877-22-335";
String reg = "\\d{3}-\\d{2}-\\d{3}";
Pattern p = Pattern.compile(reg);
Matcher m = p.matcher(str);
if(m.matches())
{
System.out.println("匹配成功");
}else{
System.out.println("匹配失败");
}

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

public class PatternDemo3 {

public static void main(String[] args) {
// TODO 自动生成的方法存根
//正则替换
String str = "al5wfowf454jl44fdg2397dfg";
String reg = "\\d+";
Pattern p = Pattern.compile(reg);
Matcher m = p.matcher(str);
System.out.println(m.replaceAll("*"));
}

}

String ip = "aa@aa.com";
System.out.println(ip.matches("\\w+@\\w+.\\w+"));

String ip2 = "127.121.11.11";
String str[] = ip2.split("\\.");
for(int i = 0; i < str.length; i++)
{
System.out.println(str[i]);
}