java程序设计教程(第六版)课后习题答案(12)

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() {

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