MatchResult group(int) method in Java with Examples
The group(int group) method of MatchResult Interface is used to get the group index of the match result already done, from the specified group.
public String group(int group)
Parameters: This method takes a parameter group which is the group from which the group index of the matched pattern is required.
Return Value: This method returns the index of the first character matched from the specified group.
Exception: This method throws:
- IllegalStateException if no match has yet been attempted, or if the previous match operation failed.
- IndexOutOfBoundsException if there is no capturing group in the pattern with the given index.
Below examples illustrate the MatchResult.group() method:
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