why is anonymous class able to access the local variable [closed]

Question

public String doSomething(){
    int i=5;

    return TestEmploye.doStringstuff(new UpperConcat() { //no name of this class
        @Override
        public String upperAndConcat(String s1, String s2) {
            System.out.println(i);
            return s1.toUpperCase()+s2.toUpperCase();
        }
    },"hello ","vishnu");
}

I have read some documentation and stackiverflow article and as per them a local inner class(class within method) or anonymous class cannot access local variable but in the above code::::::::::::::::::

i have created an interface upperAndConcat with a single Method with two string arguements [public String upperAndConcat(String s1, String s2);] TestEmployee has static method doStringstudd which i called directly

Now the question is i have decalred int i=5 as local variable inside dosomething method how is the anonymous class able to access it ???????????????????????

Answer 1

Anonymous Classes, The Java^TM Tutorials:

• An anonymous class cannot access local variables ... that are not declared as final or effectively final.

The variable i is not changed, so it is effectively final. For this reason it can be accessed by the anonymous class.