The top-level class named Y

Listing 3 shows the top-level class named Y.

Local class B extends this class to illustrate the difference

Listing 3. The top-level class named Y. 
class Y{
  protected int yVar = 2000;

  public String toString(){
    return "toString in class Y, yVar = " 
                                  + yVar;
  }//end overridden toString
}//end class Y
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