class BookTests{	
	
	// main test driver
	public static void main(String[] argv){
		
		// Examples of books:
		Book dvc = new Book("DVC", "DB", 2003);
		Book mls = new Book("MLS", "PC", 2002);
		Book sn = new Book("SN", "AP", 2001);
		
		// display the values of Book instances
		System.out.println("Books: \n" + 
				dvc.toString() + 
				mls.toString() + 
				sn.toString());
		
		// run the tests and print the test results
		System.out.println(
			// test for the method before(int year)	
			"Test before method in the class Book:" + "\n" +
			"before succeeds: " +
					(dvc.before(2004)) + "\n" +
			"before fails: " + 
					(dvc.before(1990) == false) + "\n"
					
			// tests for other methods come here...
			);	
	}	
	
}