Brief analysis of final finally finalize

1.final

The final modifier class, which indicates that the class cannot be inherited, is a top-level class.

The final modifier variable, which indicates that the variable is constant and cannot be changed after initialization.

The fianl modifier means that this method cannot be overridden, but the final decorated method can be overloaded. (The common final method is the wait (), notify () method in the object class)

2.finally

Finally is the keyword, in exception handling, the try sentence executes the content that needs to be run, the catch sentence is used to catch the exception, and the finally word indicates whether or not an exception occurred, will be executed. Finally dispensable. But Try....catch must appear in pairs.

3.finalize ()

The Finalize () method, the method of the object class, and any class inherit the object class, so any object has this method. This method is called by the GC when it determines that the object is not referenced.

Brief analysis of final finally finalize