超星 - Advance of Classes and Objects-1 - 查题吧

单选题

Which is the statement of this pointer correct?

A. The this pointer must point to a constant data.
B. Data of the this pointer can be changed.
C. Access the static member functions of the class by using the this pointer.
D. The member function can be used the this pointer as returning value.

单选题

Which of the following statements about the member function is correct?

A member function defined outside of the class where it is declared does not have class scope
B. Member functions cannot be overloaded
C. Member functions can be modified when the const keyword is placed after the parameter list in the function declaration
D. Static member functions do not need any object to be invoked

简答题

#include using namespace std;class Test{public:static int i;static int get();Test() { i++; }};int Test::i = 0;int Test::get(){return i;}Test t;int main(){Test t;cout<

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简答题

#include using namespace std;class Test {static int x;public:Test() { x++; }static int getX() { return x; }~Test() {cout << x << " destroying an object\n";x--;}};int Test::x = 0;int main(){cout << Test::getX() << " ";cout << sizeof(Test) << endl;return 0;}what is the output?

简答题

#include using namespace std;class Test {int x = 0;public:Test() { x++; }int getX() const{ return x; }};int main(){Test t0;cout << sizeof(t0) << endl;cout << t0.getX() << endl;const Test t1;cout << t1.getX() << endl;return 0;}what is the output?

简答题

#include#includeusing namespace std;class String {char* str;public:String(const char* s);void set(int index, char c) { str[index] = c; }char* get() { return str; }~String() { delete str; }};String::String(const char* s){int l = strlen(s);str = new char[l + 1];strcpy(str, s);}int main(){String s1("Quiz");s1.set(0, 'q');cout << s1.get() <

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简答题

#include#includeusing namespace std;class String {char* str;public:String(const char* s);void set(int index, char c) { str[index] = c; }char* get() { return str; }~String() { cout << str <<" object is deleted \n"; delete str; }};String::String(const char* s){int l = strlen(s);str = new char[l + 1];strcpy(str, s);}int main(){String s1("Quiz");s1.set(0, 'q');cout << s1.get() <

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