Java Final keyword

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