Method getKey

src/main/java/org/apache/commons/lang3/tuple/Pair.java:188–191

Gets the key from this pair. This method implements the Map.Entry interface returning the left element as the key. @return the left element as the key, may be null.

()

     * @return the left element as the key, may be null.
     */
    @Override
    public final L getKey() {
        return getLeft();
    }

    /**
     * Gets the left element from this pair.