⟩ An exception is thrown using _____________ keyword in CPP. a. throws b. throw c. threw d. thrown?
b. throw
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Where does keyword 'friend' should be placed? a) function declaration b) function definition c) main function d) None of the mentioned
What are the C++ friend classes? Explain its uses with an example?
What is the output of this program?
#include <iostream>
using namespace std;
class sample;
class sample1
{
int width, height;
public
int area ()
{
return (width * height);}
void convert (sample a);
};
class sample
{
private
int side;
public
void set_side (int a)
{
side = a;
}
friend class sample1;
};
void sample1convert (sample a)
{
width = a.side;
height = a.side;
}
int main ()
{
sample sqr;
sample1 rect;
sqr.set_side(6);
rect.convert(sqr);
cout << rect.area();
return 0;
}
a) 24
b) 35
c) 16
d) 36What is output of this program?
#include <iostream>
using namespace std;
class sample
{
private
int a, b;
public
void test()
{
a = 100;
b = 200;
}
friend int compute(sample e1);
};
int compute(sample e1)
{
return int(e1.a + e1.b) - 5;
}
int main()
{
sample e;
e.test();
cout << compute(e);
return 0;
}
a) 100
b) 200
c) 300
d) 295What is the friend class in C++?
What is the syntax of friend function? a) friend class1 Class2; b) friend class; c) friend class d) None of the mentioned
Pick out the correct statement. a) A friend function may be a member of another class. b) A friend function may not be a member of another class. c) A friend function may or may not be a member of another class. d) None of the mentioned
List the characteristics of friend functions?
Explain the advantages of inheritance?
How to implement inheritance in C++?
