The end() method of Matcher Class is used to get the offset after the last character matched of the match result already done.
public int end()
Parameters: This method do not takes any parameter.
Return Value: This method returns the offset after the last character matched
Exception: This method throws IllegalStateException if no match has yet been attempted, or if the previous match operation failed.
Below examples illustrate the Matcher.end() method:
Current Matcher: java.util.regex.Matcher[pattern=(G*s) region=0,13 lastmatch=]
Current Matcher: java.util.regex.Matcher[pattern=(G*G) region=0,11 lastmatch=]
Reference: Oracle Doc
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