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更多“ticket sales only make( )30% of their income. ”相关问题
  • 第1题:

    Ticket ________ should use Gates 7 and 8.

    A.holding

    B.held

    C.holders

    D.holder


    正确答案:C

  • 第2题:

    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!


    答案:
    解析:
    (1) ticket.printInvoice() (2) ticket.printInvoice() (3) ticket.printInvoice() (4) new FootDecorator(new HeadDecorator(t)) (5) new FootDecorator(new HeadDecorator(new Decorator(null)))
    【解析】

    试题分析
    本题考查的是面向对象程序设计和设计模式。本题涉及的设计模式是装饰模式。装饰模式(Decorator) :动态地给一个对象添加一些额外的职责。它提供了用子类打展功能的一个灵活的替代,比派生一个子类更加灵活。
    对于程序填空可以参照代码上下文、题干说明和设计模式综合考虑。
    对于第(1) 空,是对printInvoice方法的具体调用,在Decorator是 装饰类,继承了Invoice发票类。此处需要填写的是printInvoice方法的方法体,根据Decorator类的上下文,已定义ticket对象,所以此处调用printinvoice方法的是ticket,第(1) 空填写ticket printlnvoice()。
    对于第(2) (3) 空,根据类图可知,分别是HeadDecorator抬头 类、FootDecorator脚注类调用printInvoice方法的方法体,由于在这两个类中并没有定义属性,只有借助其超类的构造函数,所以这两个地方调用printlnvoice方法的是它们的超类,即(2) (3) 填写的是super.printInvoice()。
    对于第(4) (5) 空,考查的是对装饰模式的调用,都是main函数中实例化的过程,根据输出结果可以看到,第(4)空实例化ticket对象,可以输出抬头、内容、脚注3个部分, 因此需要调用三者的printInvoice()方法, 前面已经实例化了一个Invoice对象t,可以利用给子类实例化,因此第(4) 空填写new HeadDecorator(new FootDecorator());而第(5)空没有输出具体内容,只有抬头和脚注部分,可以看到这里的Invoice对象应该是空,所以第(5) 空填写new HeadDecorator(new FootDecorator(nl)。

  • 第3题:

    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 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!


    答案:
    解析:
    (1) ticket.printInvoice()
    (2) ticket.printInvoice()

    (3) ticket.printInvoice()

    (4) new FootDecorator(new

  • 第4题:

    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!


    正确答案:

  • 第5题:

    请选出读音不同的选项。( )

    A.physics
    B.quickly
    C.library
    D.ticket

    答案:C
    解析:
    暂无解析

  • 第6题:

    2010年,MAKE奖的全球级奖项细分为全球MAKE奖和全球独立运营机构MAKE奖。


    正确