code: public long getLong(String key, long defaultValue) {
  		String val = getStringInternal(key);
  		if (val == null) {
  			return defaultValue;
  		} else {
  			return Long.parseLong(val);
  		}
  	}
docs: Returns the value associated with the given key as a long.
  
  @param key
  the key pointing to the associated value
  @param defaultValue
  the default value which is returned in case there is no value associated with the given key
  @return the (default) value associated with the given key