public class TestForLibraryMember { public void testLibraryMember() { // Should print an error message LibraryMember m = new LibraryMember(342343); // Should be OK m = new LibraryMember(123456789); // m can't return a book: false is printed System.out.println(m.returnBook()); // prints false // m can check out a book: true is printed System.out.println(m.borrowBook("Java in 24 hrs")); // m can't check out another book: false is printed System.out.println(m.borrowBook("C++ in 24 hrs")); // m can return a book: true is printed System.out.println(m.returnBook()); } }