final keyword
final is a keyword representing the final.
final modified class can not be inherited; final modified method can not be overridden (coverage ), but can be inherited
Looking at the example, first final class : direct error in the inheritance
Longer final modification of the parent class method: class can be inherited, but this time when the error method overrides
Once the final modified variable is assigned can not be assigned again .
Here we must say something, Final and static when used with a definition of a constant, constant name must be all uppercase letters
final modification of reference, once refers to an object in the future can no longer point to other objects
Look no final modification:
Then there is a final modification:
