Method containsKey

vm/JavaAPI/src/java/util/Map.java:106–106

Returns whether this Map contains the specified key. @param key the key to search for. @return true if this map contains the specified key, false otherwise.

(Object key)

     *         {@code false} otherwise.
     */
    public boolean containsKey(Object key);

    /**
     * Returns whether this {@code Map} contains the specified value.