What is the output of the program?
#include
using namespace std;
class Base {
static int age;
public:
Base () {};
~Base () {};
void setAge(int a=10) {age = a;}
void Print() { cout << age;}
};
int Base::age=0;
int main () {
Base a,*b;
b = new Base();
a.setAge();
b?>setAge(20);
a.Print();
b?>Print();
return 0;
}
Answer : A
What happens when you attempt to compile and run the following code?
#include
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;
}
Answer : A
What happens when you attempt to compile and run the following code?
#include
using namespace std;
class A
{
public:
virtual void Print()=0;
};
class B:public A
{
public:
virtual void Print(){ cout<< "B";}
};
int main()
{
B ob2;
A *obj;
obj = &ob2;
obj?>Print();
}
Answer : A
What happens when you attempt to compile and run the following code?
#include
using namespace std;
int main()
{
int x=2, *y, z=3;
y = &z;
cout< return 0; }
Answer : D
What will happen when you attempt to compile and run the following code?
#include
#include
using namespace std;
string fun(string, string);
int main()
{
string s="Hello";
cout << fun(s, " World");
return 0;
}
string fun(string s1, string s2)
{
return s1+s2;
}
Answer : A
What happens when you attempt to compile and run the following code?
#include
using namespace std;
int main(){
int i = 1;
if (--i==1) {
cout << i;
} else {
cout << i-1;
}
return 0;
}
Answer : C
What is the output of the program given below?
#include
using namespace std;
int main (int argc, const char * argv[])
{
int i=10;
{
int i=0;
cout<
}
{
int i=5;
cout << i;
}
cout<
return 0;
}
Answer : C
Topic 2, Volume B