Maps the specified key to the specified value. @param key the key. @param value the value. @return the value of any previous mapping with the specified key or null if there was no mapping. @throws UnsupportedOperationException if adding to this {
(K key, V value)
| 195 | * not support {@code null} keys or values. |
| 196 | */ |
| 197 | public V put(K key, V value); |
| 198 | |
| 199 | /** |
| 200 | * Copies every mapping in the specified {@code Map} to this {@code Map}. |
no outgoing calls