更多"下列程序的输出结果是( )。
#include<iost"的相关试题:
[填空题]以下程序的输出结果是【 】。
#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;}
container::~container( )
{ cout < < "Destructor
[单项选择]下列程序的输出结果是( )。
#include<iostream.h>
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. line 4
B. line 6
C. line 7
D. line 8
[单项选择]如下程序的输出结果是 #include<iostream> #include<iomanip> using namespace std; class CSum{ int x,y; public: CSum(int x0,int y0):X(x0),y(y0){ } friend ostream& operator<<(ostream& os,const CSum& xA) { os<<setw(5)<<xa.x+xa.y: return os; } }; int main( ){ CSum y(3,5); cout<<setfill(’*’)<<8; cout<<y; return 0; }
A. 88
B. ****88
C. ****8****8
D. 8****8
[单项选择]如下程序的输出结果是 #include<lostream> #include<cstring> using namespace std; class XCD{ char*a; int b; public: XCD(char*aa,int bB) { a=new char[strlen(aA) +1]; strcpy(a,aA) ; b=bb; } char*Geta( ){return a;} int Getb( ){return b;} }; int main( ){ char*pl="abcd",*p2="weirong": int dl,6,d2=8; XCD x(pl,d1),y(p2,d2); cout<<strlen(x.Geta( ))+y.Getb( )<<endl; return 0; }
A. 12
B. 16
C. 14
D. 11