public class OuterTest {
public static void main(String args[]) {
Airplane.BlackBox box = new Airplane().new BlackBox(); // line 1
box.printVariables();
}
}
class Airplane {
String code = "11";
class BlackBox {
String code = "22";
public void printVariables() {
System.out.print(code);
System.out.print(Airplane.this.code); // line 20
}
}
}
