[FIXED] get substring between two strings java

Issue

I have a string String str = "start-IDK-2012-2020-end"

I would like to extract "IDK-2012-2020" this alone.

• start- is common for the string -I only want IDk and the year.

other example: String str = "start-IDK-2012-2010-java-substring-sample" expected: IDK-2012-2010

I tried split it dint work

Solution

You can try use String pattern.

Pattern pattern = Pattern.compile("IDK-[0-9]{4}-[0-9]{4}");
    String example = "start-IDK-2012-2010-java-substring-sample";
    Matcher matcher = pattern.matcher(example);
    if(matcher.find()){
        String result = example.substring(matcher.start(), matcher.end());
        System.out.println(result);
    }

Answered By - Gimaz
Answer Checked By - Terry (JavaFixing Volunteer)