课程《面向对象程序设计》_题库列表第18页_查题网

面向对象程序设计

截止01-03，该科目累计收录道题目。

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下面程序的运行结果是什么？#include<iostream>using namespace std;int add(int x,int y){return x+y;}int main( ){int m=2,n=3;cout<<"1:"<<add(m++,m+n)<<endl;m=2,n=3;cout<<"2:"<<add(++m,m+n)<<endl;m=2,n=3;cout<<"3:"<<endl;m=2,n=3;cout<<"4:"<<endl;return 0;}
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- 2023-10-28 18:37:33
下面程序的执行结果是什么？#include<iostream>using namespace std;class A{public: A(int i=0){a=i;} void print(){cout<<a<<' ';}private: int a;}; class B:public A{public: B(){b1=b2=0;} B(int i){b1=i;b2=0;} B(int i,int j,int k):A(i),b1(j),b2(k){} void print(){A::print();cout<<b1<<','<<b2<<' ';}private: int b1,b2;}; int main(){ B d1,d2(5),d3(4,5,6); d1.print();d2.print();d3.print();return 0;}
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- 2023-10-28 18:37:33
写出C++ 输出 “Hello World” 的语句
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- 2023-10-28 18:37:33
写出下面程序的执行结果：#include<iostream>using namespace std;class AA{int a;public :AA( ){cout<<"Initualizing AA! ";}~AA( ){cout<<"Destroying AA! ";}};class BB{int b;AA p;public :BB( ){cout<<"Initualizing BB! ";}~BB( ){cout<<"Destroying BB! ";}};int main( ){ BB X; cout<<"Ending main! "; return 0;}
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- 2023-10-28 18:37:33
写出下面程序执行结果：#include<iostream>using namespace std;void swap(int &,int &);int main( ){int a=5,b=8; cout<<"a="<<a<<","<<"b="<<b<<endl;swap(a,b); cout<<"a="<<a<<","<<"b="<<b<<endl;return 0;}void swap(int &x,int &y){int temp=x; x=y; y=temp;}
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- 2023-10-28 18:37:33
重载（ overload) 和重写 (overried）的区别是什么？
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- 2023-10-21 02:10:17
多态的作用是什么？
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- 2023-10-21 02:10:17
指出下面程序错误的地方，并说明理由：MemTest*mTest1=newMemTest[10]; MemTest*mTest2=newMemTest; int*pInt1=newint[10]; int*pInt2=newint; delete[]pInt1; //-1- delete[]pInt2; //-2- delete[]mTest1;//-3- delete[]mTest2;//-4-
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- 2023-10-21 02:10:17
写出下面程序的执行结果：#include<iostream.h>class AA{int a;public :AA(int i){a=i;cout<<"AA="<<a<<" ";}virtual ~AA( ){cout<<"~AA="<<a<<" ";}};class BB:public AA{int b;public :BB(int i,int j):AA(i){b=j;cout<<"BB="<<b<<" ";}~BB( ){cout<<"~BB="<<b<<" ";}};void main( ){AA *pa=new AA(8); delete pa;AA*pb=new BB(6,9); delete pb;}
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- 2023-10-21 02:10:17
写出下面程序执行结果：#include<iostream.h>void swap(int &,int &);void main( ){int a=5,b=8; cout<<"a="<<a<<","<<"b="<<b<<endl;swap(a,b); cout<<"a="<<a<<","<<"b="<<b<<endl;}void swap(int &x,int &y){int temp=x; x=y; y=temp;}
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- 2023-10-21 02:10:17