如何从内部类访问外部类的“ this”？

Question

Is it possible to get a reference to this from within a Java inner class?

ie

class Outer {

  void aMethod() {

    NewClass newClass = new NewClass() {
      void bMethod() {
        // How to I get access to "this" (pointing to outer) from here?
      }
    };
  }
}

Answer 1

您可以这样访问外部类的实例：

Outer.this

Answer 2

Outer.this

ie.

class Outer {
    void aMethod() {
        NewClass newClass = new NewClass() {
            void bMethod() {
                System.out.println( Outer.this.getClass().getName() ); // print Outer
            }
        };
    }
}

BTW In Java class names start with uppercase by convention.

Answer 3

在外部类的类名之前添加以下内容：

outer.this

Answer 4

yes you can using outer class name with this . outer.this

Answer 5

附加：内部类被声明为“静态”时，这是不可能的。