text: public Float getAndIncrement(String key) {String key2 = key.trim().toLowerCase(locale);TSTNode node = getNode(key2);if (node == null) {return null;}Float aux = (Float) (node.data);if (aux == null) {aux = 1f;} else {aux = (float) (aux.intValue() + 1);}put(key2, aux);return aux;}