What is the output of the following program? : Questions « Object Oriented « SCJP

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2. Object Oriented
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class MainClass {
  String s = "Outer";

  public static void main(String[] args) {
    S2 s2 = new S2();
    s2.display();
  }
}

class S1 {
  String s = "S1";

  void display() {
    System.out.println(s);
  }
}

class S2 extends S1 {
  String s = "S2";
}