class B {
  int x;

  B () { this(5); }

  B (int x) { this.x = x; }

  int getx () { return this.x; }
}

class Instance1 {
  public static void main (String[] args) {
    B x = new B(3);
    B y = new B();
    B z = new B();

    System.out.println("x.getx() = " + x.getx());
    System.out.println("y.getx() = " + y.getx());
    System.out.println("z.getx() = " + z.getx());

    x.x = 42;
    y.x = 17;
    System.out.println("After assignments ...");

    System.out.println("x.getx() = " + x.getx());
    System.out.println("y.getx() = " + y.getx());
    System.out.println("z.getx() = " + z.getx());
  }
}