Java final keyword modifier variable test

When you use the final keyword to decorate a variable, it means that the reference variable cannot be changed, and the contents of the object to which the reference variable is pointing can be changed.

 Packagecom.test;/*** Final modifier a variable exercise *@authorMrjiao **/ Public classFinala {Private Final StaticStringBuffer a=NewStringBuffer ("I have the final, who can change me?") ");  Public Static voidMain (string[] args) {//compilation Error//a=new stringbuffer ("I can change your, oh,no,that why!!!");System.out.println (A); A.append ("I can change you,haha!");//so when the final keyword modifies a variable, it means that the reference variable cannot be changed!!! System.out.println (A); }}

Java final keyword modifier variable test