Method putAll

lib/java/util/AbstractMap.java:299–303

Copies every mapping in the specified map to this map. @param map the map to copy mappings from. @throws UnsupportedOperationException if adding to this map is not supported. @throws ClassCastException if the class of a key or value is inappropriate for this

(Map<? extends K, ? extends V> map)

     *                support {@code null} keys or values.
     */
    public void putAll(Map<? extends K, ? extends V> map) {
        for (Map.Entry<? extends K, ? extends V> entry : map.entrySet()) {
            put(entry.getKey(), entry.getValue());
        }
    }

    /**
     * Removes a mapping with the specified key from this Map.