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发布时间:2024-05-26 20:51:14

[单项选择]下面程序的结果是( )。     #include<iostream.h>     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. 将private int m改为protected int m
B. 将private int m改为public int m
C. 将private int m改为static i
D. 将private int m改为int m

更多"下面程序的结果是( )。     #include<iostre"的相关试题:

[单项选择]下面程序的结果是( )。     #include<iostream.h>     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. 将private int m改为protected int m
B. 将private int m改为public int m
C. 将private int m改为static i
D. 将private int m改为int m
[单项选择]下面程序的输出结果是( )。   # include <iostream.h>   class example   {     int a;   public:     example (intb) {a=b++;}     void print ( ){a=a+1; cout << a <<" ";}     void print ( ) const {cout << a <<" ";}   };   void main ( )   {     example x (3);     const example y (2);     x. print ( );     y.print ( );   }
A. (operator++(x) ).operator/(y)
B. (operator++(0) ).operator/(y)
C. operator/( (operator++(x,0) ),y)
D. operator/( (operator++(0) ),y)
[单项选择]分析下面程序,该程序的运行结果是( )。
#include <iostream.h>
class cmm

public:
static int m;
cmm( )

m++;

cmm(int n)

m=n;

static void testm( )

m++;


int cmm::m=0;
void main( )

cmm A;
cmm B(3);
A. testm();
B. cout<<"m="<<m<<endl;
[填空题]下列程序的运行结果是 【15】
#include<iostream, h>
class Sample

int a;
public:
Sample(int aa=0) a=aa;
~Sample( ) cout<<"Sample="<<a<<;
class Derived: public Sample

int b;
public:
Derived(int aa=0, int bb=0): Sample(aa) b=bb;
~De rived( ) cout <<"Derived="<<b<<’’;
void main( )

Derived dl (9)

[填空题]以下程序的执行结果是 【15】 。 #include<iostream. h> class Sample { public: int x: int y; void disp( ) { cout<<"x="<<x<<",y="<<y<<end1; } }; void main( ) { int Sample:: ** pc; Sample s; pc=& Sample: :x; s.*pc=10; pc:=&Sample: :y; s.*pc=20; s.disp( ); }
[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<<"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( ) { container anObj(5,6,10);}
[单项选择]下面程序的结果为 #include<iostream.h> int c; class A { private: int a; static int b; public: A( ) {a=0;c=0;} void seta( ){a++;} void setb( ){b++;} void setc( ){c++;} void display( ) {cout << a << " " << b << " " << C;} }; int A: :b=0; void main( ) { A a1,a2; a1.seta( ); a1.setb( ); a1.setc( ); a2.seta( ); a2.setb( ); a2.setc( ); a2.display( ); }
A. 1 2 1
B. 1 2 2
C. 1 1 2
D. 2 2 2
[填空题]阅读下面程序:
#include <iostream.h>
template <class T>
class TAddprivate:
T x, y;
public:
TAdd(T a, T b)x=a;
y=b;T add( )return x +y;;
void main( )TAdd<int>a(5,6);
TAdd<double>b(2.4,5.8);
cout<<"s1 ="<<A. add( )<<",";
cout<<"s2="<<B, add( )<<end1;写出该程序的运行结果: 【13】
[填空题]下面程序的运行结果是 ______。
import java.io.*;
public class ABC

public static void main(String args[])
int i;
int a[]=11,22,33,44,55,66,77,88,99;
for(i=0;i<a.length/2;i++)
System.out.println(a[i]+a[a.length-i-1]+" ");
System.out.println( );

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