The difference between final in Java and Const in C + + __c++

(1) Final in Java to define constants, can be used for basic types or class types, if the action on the class type, then this class type cannot be the parent

Class is inherited, which means that it cannot have subclasses below it, such classes are called atomic classes.
Const in C + + defines constants,


(2) Final in Java if it's for the base type, it's the same as C + + Const.
But if it's the object, it's different.

(3) final indicates that the handle is immutable
Final Object obj= (object) New String ("a");
Obj= (Object) New String ("Hello"); it's illegal.
However, you can still invoke the method of obj. such as ((String) obj). Length () is legal

C + + If an object is defined as a const, it cannot invoke the object's method. Unless this method is defined as a const.

Package test;

/* Final indicates that this handle is not to be changed
Final Object obj= (object) New String ("a");
Obj= (Object) New String ("Hello"); it's illegal.
However, you can still invoke the method of obj. such as ((String) obj). Length () is legal * *

public class Test {


public static void Main (string[] args) {


Final Object obj = (Object) New String ("a");
Obj= (Object) New String ("Hello"); Cannot assign to the final state local variable obj
System.out.println (((String) obj). Length ()); But the method that can still call obj

}

}