题目内容

#include using namespace std;class A{public:A(){ cout <<"The A object is created\n"; }~A(){ cout << "The A object is destroyed\n"; }};class B{public:B(){ cout << "The B object is created\n"; }~B(){ cout << "The B object is destroyed\n"; }private:A a;};int main(){B b;return 0;}what is the output?

查看答案
更多问题

Given the declaration of the A class.class A{public:void print();private:char* p; //allocate a space in free store};1. How do you define a constructor to initialize data member p?2. If there is a statement A a = A() in the test program, whether do you need to define a copy constructor of the A class? How to define a copy constructor?

Given a test program.int main(){A a[10];a[0].setA(40);return 0;}Write the definition of the class according to the test program.

Given a test program.int main(){A a[] = {A(10), A(34), A(22)};cout <

汉字内码是汉字在信息处理系统内部最基本的表现形式,是信息处理系统内部存储、处理、传输汉字而使用的编码,简称内码。一个汉字的内码占用的字节数是( )。

A. 1
B. 2
C. 4
D. 8

答案查题题库