This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I'm trying to figure out how to replace just part of a match using the java regex classes (or some other set). Say I have a regex like this:
It will match strings like this: 4-3 100-5656 1-1
I would like to use string replace on the 2nd group, but I am not sure how.
If I use string.replace(matcher.group(2), ....) then it will not work correctly in the case of 1-1. I can't use backreferences in string.replace since the '-' isn't included in a group (other than 0). Is this possible with any regex api for java? I know I could include everything in a group, but for my real world usage that could get too complicated.