class OuterTest {
public static void main
(String args
[]) { Airplane airplane = new Airplane(); //line 5
Airplane.BlackBox box = airplane.new BlackBox(); // line 6
box.printVariables();
}
}
class Airplane {
class BlackBox {
public void printVariables() {
System.
out.
print(code
); // line 19 System.
out.
print(Airplane.
this.
code); // line 20 }
}
}
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