CPA-21-02 試験問題を無料オンラインアクセス

The following declaration:
int i = 0b10;

• A.sets variable i with an integer value equal to 8 (10 octal)
• B.sets variable i with an integer value equal to 10
• C.is invalid
• D.sets variable i with an integer value equal to 2 (10 binary)

Which code, inserted at line 5, generates the output "ABC"?
#include <iostream>
using namespace std;
class A {
public:
//insert code here
};
class B:public A {
public:
void Print(){ cout<< "B"; }
};
class C:public B {
public:
void Print(){ cout<< "C"; }
};
int main()
{
A ob1;
B ob2;
C ob3;
A *obj;
obj = &ob1;
obj?>Print();
obj = &ob2;
obj?>Print();
obj = &ob3;
obj?>Print();
}

• A.void Print(){ cout<<"A";}
• B.virtual void Print(string s){ cout<<s;}
• C.virtual void Print(){ cout<<"A";}
• D.None of these

Which statement should be added in the following program to make work it correctly?
using namespace std;
int main (int argc, const char * argv[])
{
cout<<"Hello";
}

• A.#include<conio.h>
• B.#include <iostream>
• C.#include<stdlib.h>
• D.#include<stdio.h>

What happens when you attempt to compile and run the following code?

• A..It prints: failed
• B.It causes a compilation error
• C.It prints: Tesc
• D.It prints: Tesc failed

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main(){
int *i;
i = new int;
*i = 1.0 / 2 * 2 / 1 * 2 / 4 * 4;
cout << *i;
return 0;
}

• A.It prints: 1
• B.It prints: 0
• C.It prints: 0.5
• D.It prints: 2