What is the result(reference variable in outter class)? : Questions « Object Oriented « SCJP

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public class Navel {
  private int size = 7;

  private static int length = 3;

  public static void main(String[] args) {
    new Navel().go();
  }

  void go() {
    int size = 5;
    System.out.println(new Gazer().adder());
  }

  class Gazer {
    int adder() {
      return size * length;
    }
  }
}