HashMap to return default value for non-found keys?

Is it possible to have a HashMap return a default value for all keys that are not found in the set?

In Java 8, use Map.getOrDefault. It takes the key, and the value to return if no matching key is found.

[Update]

As noted by other answers and commenters, as of Java 8 you can simply call Map#getOrDefault(...).

[Original]

There's no Map implementation that does this exactly but it would be trivial to implement your own by extending HashMap:

public class DefaultHashMap<K,V> extends HashMap<K,V> {
  protected V defaultValue;
  public DefaultHashMap(V defaultValue) {
    this.defaultValue = defaultValue;
  }
  @Override
  public V get(Object k) {
    return containsKey(k) ? super.get(k) : defaultValue;
  }
}