Method Local Inner Class

Question

public class Test {
    public static void main(String[] args) {

    }
}

class Outer {
    void aMethod() {
        class MethodLocalInner {
            void bMethod() {
                System.out.println("Inside method-local bMethod");
            }
        }
    }
}

Can someone tell me how to print the message from bMethod? Thanks.

Answer 1

This might get you started, (I don't have anything handy to test with). Notice the modified constructor syntax:

http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html

Answer 2

You can only instantiate MethodLocalInner within aMethod. So do

void aMethod() {

    class MethodLocalInner {

            void bMethod() {

                    System.out.println("Inside method-local bMethod");
            }
    }

    MethodLocalInner foo = new MethodLocalInner(); // Default Constructor
    foo.bMethod();

}

Answer 3

Within the method aMethod after the declaration of the class MethodLocalInner you could for instance do the following call:

new MethodLocalInner().bMethod();

Answer 4

Why don't you just create an instance of MethodLocalInner, in aMethod, and call bMethod on the new instance?

Answer 5

Please read Thinking in Java