Final keyword
The final keyword in Java is called the end-point, meaning
Also, final can declare classes, methods, and properties, but:
1. Classes that use final declarations cannot be inherited;
2. Methods that use the final declaration cannot be overridden;
3. Use the Final declaration of the variable to become bright, solid is not allowed to be modified.
The code is as follows:
Package Hello;final class People2{final public void Tell () {}}class student2 extends people2{public void Tell () {}}public cl Finaldemo {public static void main (string[] args) {final String NAME = "Zhangsan"; name = "Lisi";}}
The above code will report three errors:
The type Student2 cannot subclass the final class
People2
Cannot override the final method from
People2
Name cannot is resolved to a
Variable
In general, the final modified variables are capitalized (NAME)
Java Final keyword