C++ Institute CPA-21-02 CPA – C++ Certified Associate Programmer Online Training
C++ Institute CPA-21-02 Online Training
The questions for CPA-21-02 were last updated at May 06,2025.
- Exam Code: CPA-21-02
- Exam Name: CPA – C++ Certified Associate Programmer
- Certification Provider: C++ Institute
- Latest update: May 06,2025
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
public:
int x;
};
class B: public A {
public:
B() { x=1;}
B(int x) {this?>x = x;}
};
int main () {
B c1;
B c2(10);
cout << c1.x;
cout << c2.x;
return 0;
}
- A . It prints: 010
- B . It prints: 110
- C . It prints: 00
- D . It prints: 1
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
void fun(char*);
int main()
{
char t[4]={‘0’, ‘1’, ‘2’, ‘3’};
fun(&t[2]);
return 0;
}
void fun(char *a)
{
cout << *a;
}
- A . It prints: 2
- B . It prints: 21
- C . It prints: 00
- D . It prints: 02
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
public:
A() { cout << "A no parameters";}
A(string s) { cout << "A string parameter";}
A(A &a) { cout << "A object A parameter";}
};
class B: public A {
public:
B() { cout << "B no parameters";}
B(string s) { cout << "B string parameter";}
};
int main () {
A a2("Test");
B b1("Alan");
B b2(b1);
return 0;
}
- A . It prints: A no parametersA no parametersB string parameter
- B . It prints: A string parameterA no parametersB string parameterA object A parameter
- C . It prints: A no parametersB string parameter
- D . It prints: A no parametersA no parameters
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
public:
string s;
A(string s) { this?>s = s; }
};
class B {
public:
string s;
B (A a) { this?>s = a.s; }
void print() { cout<<s; }
};
int main()
{
A a("Hello world");
B b=a;
b.print();
}
- A . It prints: Hello world
- B . It prints: Hello
- C . Compilation error
- D . None of these
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int op(int x, int y);
int main()
{
float *pf;
float f=0.9;
pf=&f;
cout << op(1, *pf);
return 0;
}
int op(int x, int y)
{
return x*y;
}
- A . It prints: 0
- B . It prints: 0.5
- C . It prints: 1
- D . It prints: ?1
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class First
{
string *s;
public:
First() { s = new string("Text");}
~First() { delete s;}
void Print(){ cout<<*s;}
};
int main()
{
First FirstObject;
FirstObject.Print();
FirstObject.~First();
}
- A . It prints: Text
- B . Compilation error
- C . Runtime error.
- D . None of these
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: AB
- B . It prints: AA
- C . It prints: BA
- D . It prints: BB
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <sstream>
#include <string>
using namespace std;
int main(void)
{
string s;
s = "Test";
s.resize (s.size() ? 1);
cout<<s<<" "<<s.size();
return 0;
}
- A . It prints: Test 4
- B . It prints: Test 3
- C . Compilation error
- D . It prints: Tes 3
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: public A {
public:
B() { x=1;}
};
class C: private B {
public:
C() { x=2;}
};
int main () {
C c1;
cout << c1.x;
return 0;
}
- A . It prints: 210
- B . It prints: 110
- C . It prints: 010
- D . Compilation error
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
public:
A() { cout << "A no parameters";}
A(string s) { cout << "A string parameter";}
A(A &a) { cout << "A object A parameter";}
};
class B: public A {
public:
B() { cout << "B no parameters";}
B(string s) { cout << "B string parameter";}
B(int s) { cout << "B int parameter";}
};
int main () {
A a2("Test");
B b1(10);
B b2(b1);
return 0;
}
- A . It prints: A no parametersA no parametersB string parameter
- B . It prints: A string parameterA no parametersB int parameterA object A parameter
- C . It prints: A no parametersB string parameter
- D . It prints: A no parametersA no parameters
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