1, with the final to modify data
Modification of data can not be changed
2, final modification is the object
You can not change the reference to the object, but you can modify an object's property values
3, with the final to modify parameters
Modification of data can not be changed
4, with a final time to modify process (function)
Locking means of preventing extends it to modify the (coverage) which
to sum up:
With final modifications, mainly to show "non-modifiable nature", thereby improving safety.
