Book book1=new Book("C语言程序设计","谭浩强","清华出版社","zuozhe");
System.out.println(book1.title+" "+book1.author+" "+book1.publisher+" "+book1.copyright);
book.setBook("JAVA 语言设计","William Loftus","西安电子出版社","sheng");
book.getBookTitle();
book.getBookAuthor();
book.getBookPublisher();
book.getBookCopyright();
System.out.println(book.title+" "+book.author+" "+book.publisher+" "+book.copyright);
String str=book.toString();
System.out.print("str="+str);
}
}
//////////////////////////////////////////////////////////
PP4.5
class Flight{
String name, origin,destination;
int number;
public Flight()
{
name="西安国际机场"; origin="西安"; destination="北京"; number=121; } public Flight(String n,String o,String d,int num) { name=n;origin=o;destination=d;number=num; } public void setFlight(String n1,String o1,String d1,int num1) { name=n1; origin=o1; destination=d1; number=num1; } public String getName() {