1.手机号正则
String regex = "(1\w{2})(\w{4})(\w{4})";
String phone = phone.replaceAll (regex, "$1 $2 $3");
2.银行卡号正则,后四位显示
String regex ="^(\\w+)(\\w{4})$";
String carnumber = idCard.replaceAll (regex,"**** **** ****$2");
1.手机号正则
String regex = "(1\w{2})(\w{4})(\w{4})";
String phone = phone.replaceAll (regex, "$1 $2 $3");
2.银行卡号正则,后四位显示
String regex ="^(\\w+)(\\w{4})$";
String carnumber = idCard.replaceAll (regex,"**** **** ****$2");