CPA 무료 덤프문제 온라인 액세스

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class A {
public:
int x;
A() { x=0;}
};
class B : protected A {
public:
int y;
using A::x;
B(int y) {this->y = y;}
void Print() { cout << x << y; }
};
int main () {
B b(5);
b.Print();
return 0;
}

• A.It prints: 05
• B.It prints: 0
• C.It prints: 5
• D.It prints: 15

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int fun(int x) {
return 2*x;
}
int main(){
int i;
i = fun(0.5) || fun(0);
cout << i;
return 0;
}

• A.It prints: -1
• B.Compilation error
• C.It prints: 0
• D.It prints: 1

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class A
{
public:
virtual void Print(){ cout<<"A";}
};
class B:public A
{
public:
void Print(){ cout<< "B";}
};
int main()
{
A *obj;
A ob1;
obj = &ob1;
obj->Print();
B ob2;
obj = &ob2;
obj->Print();
}

• A.It prints: BB
• B.It prints: BA
• C.It prints: AA
• D.It prints: AB

What will the variable "age" be in class B?
class A {
int x;
protected:
int y;
public:
int age;
A () { age=5; };
};
class B : public A {
string name;
public:
B () { name="Bob"; };
void Print() {
cout << name << age;
}
};

• A.None of these
• B.protected
• C.private
• D.public

Which code, inserted at line 8, generates the output "0102020"?
#include <iostream>
using namespace std;
class Base {
static int age;
public:
Base () {};
~Base () {};
//insert code here
void Print() { cout << age;}
};
int Base::age=0;
int main () {
Base a,*b;
b = new Base();
a.Print();
a.setAge(10);
a.Print();
b->setAge();
a.Print();
b->Print();
return 0;
}

• A.void setAge() {age = 10;}
• B.void setAge() {age = 20;}
• C.void setAge(int a=20) {age = a;}
• D.void setAge(int a) {age = a;}