Java: Getting a substring from a string starting after a particular String-CodePudding

I have a string:

CLAIM NUMBER 1234563 AND INCIDENT DATE 12/12/2020 12:00:00

I would like to extract 1234563 and 12/12/2020 12:00:00 from this, i.e. the substring after the NUMBER and DATE.

Could someone please provide some help?

I tried though the the substring and index but it's not giving expected answer.

CodePudding user response：

It is better to use regexp to extract data from formatted string.

final String regex = "CLAIM NUMBER\\s (?<claimNumber>\\S )\\s AND INCIDENT DATE\\s (?<incidentDate>\\S \\s \\S )";
final String str = "CLAIM NUMBER 1234563 AND INCIDENT DATE 12/12/2020 12:00:00";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(str);

if(matcher.matches()) {
    String claimNumber = matcher.group("claimNumber");
    String incidentDate = matcher.group("incidentDate");
}

CodePudding user response：

If the text is always the same, then you can do that with String#substring().

String data = "CLAIM NUMBER 1234563 AND INCIDENT DATE 12/12/2020 12:00:00 ";
String number = data.substring(13, 20);
String datetime = data.substring(39, 58);
System.out.println(number   ", "   datetime);
// output: 1234563, 12/12/2020 12:00:00