次のコード
String myString = "0067711990999999*1955*0515070999999999999N9+01*23*1+99999999";
// matches all number series (one or more consecutive digits)
// between * characters. * normally matches any character and
// so has to be escaped using \, which in a string becomes \\,
// i.e the regular expression is actually \*([0-9])\*
Pattern pattern = Pattern.compile("\\*([0-9]+)\\*");
Matcher matcher = pattern.matcher(myString);
while (matcher.find()) {
// the parantheses in the regex creates a capturing group, i.e.
// a substring within the match that can later be extracted.
// the "1" here means we're picking up the value of the first
// (and in this case, only) capturing group, which is the
// actual numbers (i.e. not including the * characters)
System.out.println(matcher.group(1));
}
印刷します
1955
23
それはあなたが探しているものですか?