class One {  public One() { System.out.print(1); }  }  class Two extends One {  public Two() { System.out.print(2); }  }  class Three extends Two {  public Three() { System.out.print(3); }  }  public class Numbers{  public static void main( String[] argv

题目

class One {  public One() { System.out.print(1); }  }  class Two extends One {  public Two() { System.out.print(2); }  }  class Three extends Two {  public Three() { System.out.print(3); }  }  public class Numbers{  public static void main( String[] argv) { new Three(); }  }  What is the result when this code is executed?() 

  • A、 1
  • B、 3
  • C、 123
  • D、 321
  • E、 The code rims with no output.

相似考题
更多“class One {  pub”相关问题
  • 第1题:

    22.I am in _________ .

    A. Grade One

    B. eight

    C. my friend

    D. Class One


    正确答案:D
    22.D【解析】从文中第四句可知.

  • 第2题:

    Lucy and Lily is both in Class One.()


    参考答案: 错误

  • 第3题:

    one of the distinctive features about the british class system is that it has also retained a hereditary aristocracy. ()


    参考答案:正确

  • 第4题:

    有如下程序:

    #include<iostream>

    using narnespace std;

    class ONE{

    int e;

    public:

    ONE():c(O){cout<<1;)

    ONE(int n):c(13){cout<<2;}

    };

    class TWO{

    ONE oriel;

    ONE one2,

    public:

    TWO(int m):one2(m){cout<<3;}

    };

    int main(){

    TWO t(4);

    return O;

    }

    运行时的输出结果是

    A.3

    B.23

    C.123

    D.213


    正确答案:B
    解析:在主函数中TWO t(4),首先调用TWO类的构造函数TwO(int m):one2(m){eout<<3;},该构造函数使用成员列表初始化,因此在调用函数体前会先给私有成员赋值,然后调用ONE的构造函数ONE(int n):c(n){cout<<2;},因此会先输出2,其次输出3,故本题答案为B)。

  • 第5题:

    有以下程序:includeusing namespace std;Class A{public:A(){tout{("A"}};classB{pub

    有以下程序: #include<iostream> using namespace std; Class A{ public: A(){tout{("A"} }; classB{public:B(){cout<<"B";>> classC:public A{ B b; public: C(){cout<<"C";} }; int main(){C obj;return 0;} 执行后的输出结果是( )。

    A.CBA

    B.BAC

    C.ACB

    D.ABC


    正确答案:D
    解析: 本题考查的是类的继承和派生。系统首先要通过派生类的构造函数调用基类的构造函数,对基类成员初始化,然后对派生类中的新增成员初始化。

  • 第6题:

    12.

    A. grade one,class four

    B. class four,grade one

    C. Grade One,Class Four

    D. Class Four,Grade One


    正确答案:D
    12.D【解析】英语中表示单位或地址的名词的排列顺序通常是由小及大。同时要注意首字母要大写。

  • 第7题:

    7360 FX GPON中,xml文件的存放路径是:

    • A、/Sw
    • B、/pub/OntSw/
    • C、/pub/Sw/Download/
    • D、/pub/OntSw/Download/

    正确答案:D

  • 第8题:

    class One {   public One foo() { return this; }  }  class Two extends One {  public One foo() { return this; }  }  class Three extends Two {   // insert method here  }  Which two methods, inserted individually, correctly complete the Three class?()

    • A、 public void foo() { }
    • B、 public int foo() { return 3; }
    • C、 public Two foo() { return this; }
    • D、 public One foo() { return this; }
    • E、 public Object foo() { return this; }

    正确答案:C,D

  • 第9题:

    单选题
    He was one of the boys who _____ late for class.
    A

    are

    B

    is

    C

    were

    D

    was


    正确答案: B
    解析:
    句意:他是上课迟到的男孩中的一位。“迟到”是在过去发生的,所以应该用过去时,先排除A、B。定语从句的先行词是boys,谓语动词要用复数,故为C。

  • 第10题:

    单选题
    There ______ a basketball match between Class One and Class Three this afternoon.
    A

    is going to be

    B

    will have

    C

    are going to be

    D

    is going to have


    正确答案: B
    解析:
    句意:今天下午在一班和三班之间有一场篮球赛。There be的将来时态是There is going to/ will be…(名词单数),因此选A项。

  • 第11题:

    单选题
    class One {  public One() { System.out.print(1); }  }  class Two extends One {  public Two() { System.out.print(2); }  }  class Three extends Two {  public Three() { System.out.print(3); }  }  public class Numbers{  public static void main( String[] argv) { new Three(); }  }  What is the result when this code is executed?()
    A

     1

    B

     3

    C

     123

    D

     321

    E

     The code rims with no output.


    正确答案: B
    解析: 暂无解析

  • 第12题:

    多选题
    class One {   public One foo() { return this; }  }  class Two extends One {  public One foo() { return this; }  }  class Three extends Two {   // insert method here  }  Which two methods, inserted individually, correctly complete the Three class?()
    A

    public void foo() { }

    B

    public int foo() { return 3; }

    C

    public Two foo() { return this; }

    D

    public One foo() { return this; }

    E

    public Object foo() { return this; }


    正确答案: D,B
    解析: 暂无解析

  • 第13题:

    Eponyms is a process that puts an existing word of one class into another class.()


    参考答案:错误

  • 第14题:

    有如下程序: include using namespace std; class ONE { public: virtual void f() {

    有如下程序:

    include <iostream>

    using namespace std;

    class ONE

    {

    public:

    virtual void f() { cout << "1"; }

    };

    class TWO: public ONE

    {

    public:

    TWO() { cout << "2"; }

    };

    class THREE: public TWO

    {

    public:

    virtual void f() {TWO::f(); cout << "3"; }

    };

    int main()

    {

    ONE aa, *p;

    TWO bb;

    THREE cc;

    p=&cc;

    P->f();

    return 0;

    }

    执行上面程序的输出是【 】。


    正确答案:2213
    2213

  • 第15题:

    类clasg one在声明func成员函数时发生错误,出错原因是______。

    class one

    private:

    int a;

    public:

    void func(two&);

    };

    class two

    {

    private:

    int b;

    friend vold one::func(two&);

    };

    void one::func(two&r)

    {

    a=r.b;

    }


    正确答案:class one前没有声明语句class two;
    class one前没有声明语句class two; 解析:当一个类作为另一个类的成员函数、成员函数的参数或其他情况的时候,要确保编译器能正确解析。由于在rclass orle之前没有关于class two的任何说明,而在class one的func函数中却用了class two类的参数。因此是错误的。

  • 第16题:

    有下列程序:includeusing namespace std;class ONE{ public:virtual void f(){COUt<<"

    有下列程序:

    include<iostream>

    using namespace std;

    class ONE

    {

    public:

    virtual void f(){COUt<<"1";}

    };

    c1assTWO:public ONE

    {

    public:

    TWO(){cout<<"2";}

    };

    class THREE:public TWO

    {

    pub


    正确答案:2213
    2213 解析: 此题考查的是派生类的构造和析构函数。建立TWO的对象bb时,调用TWO的构造函数,输出“2”;THREE类又派生于TWO类,所以建立THREE类的对象cc时又会输出“2”;ONE类的对象指针p指向了THREE类的ONE类的虚函数f(),输出“1”;最后调用THREE类的f(),输出“3”。故最终的输出结果是2213。

  • 第17题:

    类class one 在声明func 成员函数时发生错误,出错原因是【 】。

    Class one

    {

    private:

    int a;

    public:

    void func(two& )

    };

    class two

    {

    private:

    int b;

    friend void one: :func(two & );

    };

    void one: : func(two& r)

    a=r.b;

    }


    正确答案:class one前没有声明语句class two;
    class one前没有声明语句class two; 解析:当一个类作为另一个类的成员函数、成员函数的参数或其他情况的时候,要确保编译器能正确解析。由于在class one之前没有关于class two的任何说明,而在class one的func函数中却用了class two类的参数。因此是错误的。

  • 第18题:

    The red flower goes from one to()in the class.

    Athe other

    Bothers

    Canother

    Dother


    C

  • 第19题:

    class One {  void foo() {}  }  class Two extends One {   //insert method here  }  Which three methods, inserted individually at line 14, will correctly complete class Two?()

    • A、 int foo() { /* more code here */ }
    • B、 void foo() { /* more code here */ }
    • C、 public void foo() { /* more code here */ }
    • D、 private void foo() { /* more code here */ }
    • E、 protected void foo() { /* more code here */ }

    正确答案:B,C,E

  • 第20题:

    Which two statements about login classes correctly define their usage within the JUNOS software?()

    • A、A different login class must be configured for each user.
    • B、Individual commands can be explicitly allowed or denied.
    • C、A user must be assigned to one of the default login classes.
    • D、Each login class is associated with one or more permissions flags.

    正确答案:B,D

  • 第21题:

    多选题
    class One {  void foo() {}  }  class Two extends One {   //insert method here  }  Which three methods, inserted individually at line 14, will correctly complete class Two?()
    A

    int foo() { /* more code here */ }

    B

    void foo() { /* more code here */ }

    C

    public void foo() { /* more code here */ }

    D

    private void foo() { /* more code here */ }

    E

    protected void foo() { /* more code here */ }


    正确答案: B,C,E
    解析: 暂无解析

  • 第22题:

    单选题
    There are not_____students in Class One as in Class Two.
    A

    so many

    B

    so much

    C

    more

    D

    much more


    正确答案: A
    解析:

  • 第23题:

    单选题
    One of the major concerns of students in any speech class()stage fright.
    A

    are

    B

    is

    C

    was

    D

    were


    正确答案: C
    解析: 暂无解析