@Author: twlkyao

package twlkyao;

public class A { 
 public A() { 
  Inner inner = new Inner();
  inner.outer(); // call the inner class's outer method.
  this.outer(); // call A's outer method.
 } 
 
 public void outer() { 
  System.out.println("outer run");
 } 

 class Inner {
  public void outer(){
   System.out.println("inner run");
   A.this.outer(); // call A's outer method.
   System.out.println("--------");
  }
 }
 
 public static void main(String[] args) {
  A a = new A();
 }
}

inner run

outer run

--------

outer run