class Book {
  String title;
  String author;
  int numPages;
  boolean isCopyrighted;
  
  Book( String _title, String _author, int _numPages, boolean _isCopyrighted ) {
      this.title = _title;
      this.author = _author;
      this.numPages = _numPages;
      this.isCopyrighted = _isCopyrighted;
    }
  
  
  void tests() {
    Book b0, b1;
    b1 = new Book( "The Cat in the Hat", "Seuss", 37, true );
    b0 = new Book( "Soul and Wit", "Barland", 0, false );
    //b0.title;
    //b1.isCopyrighted;
    }
  
  }