Java-如何从参数访问外部类？

Question

public class Outer {
    public void Say(Bar bar) {
        //...
    }
    public Outer(final Foo foo) {
        //...
    }
}

public interface Foo {
    void blah(Bar bar);
}

public class Application {
    public static void main(String[] args) {
        Outer outer = new Outer(new Foo() { 
            @Override
            public void blah(Bar bar) {
                /*trying to access "outer"*/.Say(bar);
            }
        });
    }
}

What should I do to access "outer"?
Thanks.



StackOverflow forbade me from posting this because it said my post was mainly code and this line is just a bunch of nonsense. Please ignore it.

Answer 1

Outer is not reachable. As the instance is created after Foo is created.

I see two ways: 1. Convert the variable outer into a static context. 2. Hand over the variable while calling method blah()

Answer 2

在您的示例中，“外部”就是“这个”