import java.util.regex.MatchResult;

// Outside of scope of the Regex Checker to verify an implementation of MatchResult,
// so just check for crashes.
@SuppressWarnings("regex")
public class MyMatchResult implements MatchResult {

    @Override
    public int start() {
        group(0);
        group();
        end();
        end(1);
        groupCount();
        start();
        start(19);
        return 0;
    }

    @Override
    public int start(int group) {
        return 0;
    }

    @Override
    public int end() {
        return 0;
    }

    @Override
    public int end(int group) {
        return 0;
    }

    @Override
    public String group() {
        return null;
    }

    @Override
    public String group(int group) {
        return null;
    }

    @Override
    public int groupCount() {
        return 0;
    }
}