public String toString(final String format) {
        return String.format(format, getF1(), getF2(), getF3(), getF4());
    }
<p>Formats the receiver using the given format.</p>

<p>This uses {@link java.util.Formattable} to perform the formatting. Three variables may
be used to embed the f1 and f3 elements. Use {@code %1$s} for the f1
element, {@code %2$s} for the f2 , {@code %3$s} for the f3 element and {@code %4$s} for the f4 element.
The default format used by {@code toString()} is {@code (%1$s,%2$s,%3$s,%4$s)}.</p>

@param format the format string, optionally containing {@code %1$s}, {@code %2$s} and {@code %3$s}, not null
@return the formatted string, not null
inlong-manager/manager-common/src/main/java/org/apache/inlong/manager/common/tool/excel/tuple/Quartet.java