更多"以下程序的输出结果是 【8】 。 #include<iostream"的相关试题:
[填空题]以下程序的输出结果是 【8】 。
#include<iostream.h>
class object
private:
int val;
public:
object( );
object(int i);
~object( );;
object∷object( )
val=0;
cout<<"Default constructor for object"<<endl;
object∷object(int i)
val=i;
cout<<"Constmctor for object"<<val<<endl;
object∷~object( )
cout<<"Destructor for object" << val << endl;
class containet private:
object one;
object two;
int data:
public:
containet( );
container(int i,int j,int k);
~container( );;
container∷contalner( )
dara=0;
cout<<"Default constructor for container" <<endl;
container∷container(int i,int j,int k):two(i),one(j)
data=k;
cout<<"Constmctor for container"<<endl;
containet∷~container( )
cout<<"Destmctor for container" <<endl;
void main( )
container
[填空题]以下程序的输出结果是 。
#include<iostream.h>
class object
private:
int val;
public:
object( ) ;
object(int i) ;
~object( ) ;;
object: :object( )
val=0;
cout < < "Default constructor for object" < < endl;
object: :object(int i)
val=i;
cout < < "Constructor for object" < < val < < endl;
object: :~object( )
cout < < "Destructor for object" < < val < < endl;
class container private:
object one;
object two;
int data;
public:
container( ) ;
container(int i,int j,int k) ;
~container( ) ;;
container: :container( )
data=0;
cout < < "Default constructor for container" < < endl;
container: :container(int i,int j,int k) :two(i) ,one(j)
data=k;
cout < < "Constructor for container" < < endl;
container: :~container( )
cout < < "Destructor for container" < < endl;
void main( )
[单项选择]下列程序的输出结果是
#include
class Myclass
public:Myclass(int i=0,intj=0)
x=i;
y=j;
void show( ) cout < < "x=" < < x < < " " < "y=" < < y < < end1;
void show( )const cout < < "x=" < < " " < < "y=’ < < y < < end1;
privated:
int x; int y;
;
void main( )
Myclass my1(3,4);
const my2(7,8);
my1.show( );my2.show( );
A. x=4,y=3;x=7,y=8
B. x=3,y=4;x=7,y=8
C. x=7,y=8;x=4,y=3
D. x=8,y=7;x=7,y=8
[填空题]以下程序的输出结果是 【8】 。
#include<iostream.h>
class object
private:
int va1;
public:
object( );
object(int i)
~object( ); ;
object::Object( )
va1=0;
cout < < "Default constructor for object" < < end1;
object::object(int i)
va1=i
cout < < "Constructor for object" < < va1 < < end1;
object::~object( )
cout < < "Destructor for object" < < va1 < < end1;
class container private:
object one;
object two;
int data;
public:
container( );
container(int i,int j,int k);
~container( ); ;
container::container( )
data=0;
cout < < "Default constructor for container" < < end1;
container::container(int i,int j,int k):two(i),one(j)
data=k;
cout < < "Constructor for container" < < end1;
[单项选择]以下程序执行后的输出结果是 ( )。
#include <iostream.h>
class Basel
public:
void fun( ) cout<<"Basel"<<end1;
;
class Base2
public:
void fun( ) cout<<"Base2"<<end1;
class Derived : public Basel,public Base2
;
void main( )
Derived Obj;
Obj.fun( );
A. Basel
B. Base2
C. BaselBase2
D. 程序产生二义性
[单项选择]下列程序的输出结果是 #include<iostream.h> class Myclass{ public : Myclass( int i=0,int j=0) {x=i; y=j; } void show( ){cout<<"x="<<x<<" "<"y="<<y<<endl;} void show( )const{cout<<"x="<<" "<<"y="<<y<<endl;} privated: int x; int y; }; void main( ) { Myclass my l (3,4); const my2(7,8); my l.show( );my2.show( );}
A. x=4,y=3;x=7,y=8
B. x=3,y=4;x=7,y=8
C. x=7,y=8;x=4,y=3
D. x=8,y=7;x=7,y=8
[单项选择]下面程序的输出结果是
#include<iostream,h>
class example
int a;
public:
example(int b) a=b++;
void print( )a=a+1;cout<<a<<"";
void print( )constcout<<a<<"";
;
void main( )
example X(3);
const example y(2);
x.print( );
y.print( );
A. 22
B. 43
C. 42
D. 32
[单项选择]下列程序的输出结果是
#include<iostream.h>
class Myclass
public:My class(inti=0,int j=0)
x=i;
y=j;
void show( )cout<<"x=" <<x<<" " <"y=" <<y<<endl;
void show( )constcout<<"x="<<""<<"y="<<y<<endl;
privated:
int x; int y;
;
void main( )
Myclassmy1(3,4);
const my2(7,8);
myl.show( );my2.show( );
A. x=4,y=3;x=7,y=8
B. x=3,y=4;X=7,y=8
C. x=7,y=8;x=4,y=3
D. x=8,y=7;x=7,y=8
[单项选择]下面程序的输出结果是
#include<iostream.h>
class A
public:
A( ) cout < < "construtA" < < endl;
Virtual~A( ) cout < < "destructA" < < endl;;
class B: public A
;
class C:public A
;
class D:public B,public C
;
void main( )
D d;
A. constructA
B. constructA
C. constructA
D. constructA
[单项选择]下面程序的结果是
#include
class A
{
int a;
public:
A( ):a (1){}
void showa( ){cout<<a;}
};
class B
{
int a;
public:
B( ):a (2){}
void showa( ){cout<<a;}
};
class C:public A, public B
{
int a;
public:
C( ):a (3){}
void showa( ){cout<<a;}
};
void main( )
{
C c;
c.showa( );
}
A. 1
B. 2
C. 3
D. 程序有错误