An air ticket is only ()for the passenger whose name appears on the ticket.A.transferableB.untransferableC.validD.invalid
An air ticket is only ()for the passenger whose name appears on the ticket.
A.transferable
B.untransferable
C.valid
D.invalid
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试题六（共15分）阅读下列说明和Java代码，将应填入 （n） 处的字句写在答题纸的对应栏内。【说明】某发票（lnvoice）由抬头（Head）部分、正文部分和脚注（Foot）部分构成。现采用装饰（ Decorator）模式实现打印发票的功能，得到如图6-1所示的类图。【java代码】class invoice{public void printInvoice(){：System.out.println ( This is the content of the invoice!);}}class Decorator : extends Invoice {protected Invoice ticket;public Decorator（lnvoice t）{ticket = t;}public void printinvoice（）{if（ticket != NULL）（1）；}}class FootDecorator extends Decorator{public FootDecorator（lnvoice t）{super（t）;}public void printinvoice (){Systent.out.println( This is the header of the invoice! );（2） ；}}class FootDecorator extends Decorator {public FootDecorator（invoice t）:{super(t);}public void printlnvoice（）{（3） ；Systent.out.println( This is the header of the invoice! );}}Class test {public static void main（string[] args）{Invoice t =new invioce();Invoice ticket;Ticket= （4） ；Ticket. Printinvoice();Systent.out.println(“--------------“)Ticket= （5） ；Ticket. Printinvoice();}}程序的输出结果为：This is the header of the invoice!This is the content of the invoice!This is the footnote of the invoice!----------------------------This is the header of the invoice!This is the footnote of the invoice!
阅读下列说明和Java代码，将应填入（n）处的字句写在答题纸的对应栏内。 【说明】 某发票（lnvoice）由抬头（Head）部分、正文部分和脚注（Foot）部分构成。现采用装饰（Decorator）模式实现打印发票的功能，得到如图6-1所示的类图。【java代码】 class invoice{ public void printInvoice(){： System.out.println("This is the content of the invoice!"); } } class Decorator:extends Invoice{ protected Invoice ticket; public Decorator（lnvoice t）{ ticket=t; } public void printinvoice（）{ if（ticket!=NULL） （1）； } } class FootDecorator extends Decorator{ public FootDecorator（lnvoice t）{ super（t）; } public void printinvoice(){ Systent.out.println("This is the header of the invoice!"); （2）； } } class FootDecorator extends Decorator{ public FootDecorator（invoice t）:{ super(t); } public void printlnvoice（）{ （3）； Systent.out.println("This is the header of the invoice!"); } } Class test{ public static void main（string[]args）{ Invoice t=new invioce(); Invoice ticket; Ticket=（4）； Ticket.Printinvoice(); Systent.out.println(“--------------“) Ticket=（5）； Ticket.Printinvoice(); } } 程序的输出结果为： This is the header of the invoice! This is the content of the invoice! This is the footnote of the invoice! ---------------------------- This is the header of the invoice! This is the footnote of the invoice!
阅读下列说明和java代码，将应填入 （n） 处的字句写在答题纸的对应栏内。【说明】 某发票（lnvoice）由抬头（Head）部分、正文部分和脚注（Foot）部分构成。现采用装饰（Decorator）模式实现打印发票的功能，得到如图6-1所示的类图。【java代码】class invoice{public void printInvoice（ ）{ System.out.println ( "This is the content of the invoice!"); }}class Decorator extends Invoice { protected Invoice ticket; public Decorator(lnvoice t){ ticket = t;} publicvoid printInvoice（ ）{ if(ticket != null) （1） ; } }class HeadDecorator extends Decorator{ public HeadDecorator(lnvoice t){ super(t);} public void printInvoice （ ）{ Systent.out.println( "This is the header of the invoice! "); （2） ; }} class FootDecorator extends Decorator { public FootDecorator(Invoice t){ super(t);} public void printlnvoice（ ）{ （ 3） ; Systent.out.println( "This is the footnote of the invoice! "); }}Class test { public static void main(String[] args){ Invoice t =new Invioce（ ）; Invoice ticket; ticket= （4） ; ticket.printInvoice（ ）; Systent.out.println(“------------------“); ticket= （5） ; ticket.printInvoice（ ）; }}程序的输出结果为： This is the header of the invoice! This is the content of the invoice! This is the footnote of the invoice! ---------------------------- This is the header of the invoice! This is the footnote of the invoice!