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Dive deep into the fascinating world of Classes and Operator Overloading in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Operator Overloading in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Operator Overloading in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.
Check out the MCQs below to embark on an enriching journey through Classes and Operator Overloading in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.
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Classes and Operator Overloading in C++ MCQs | Page 12 of 39
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#include <iostream>
using namespace std;
const int SIZE = 10;
class safe
{
private:
int arr[SIZE];
public:
safe()
{
register int i;
for (i = 0; i < SIZE; i++)
{
arr[i] = i;
}
}
int &operator[](int i)
{
if (i > SIZE)
{
cout << "Index out of bounds" <<endl;
return arr[0];
}
return arr[i];
}
};
int main()
{
safe A;
cout << A[5];
cout << A[12];
return 0;
} #include <iostream>
using namespace std;
class numbers
{
private:
int m_nValues[10];
public:
int& operator[] (const int nValue);
};
int& numbers::operator[](const int nValue)
{
return m_nValues[nValue];
}
int main()
{
numbers N;
N[5] = 4;
cout << N[5];
return 0;
} #include <iostream>
using namespace std;
const int limit = 4;
class safearray
{
private:
int arr[limit];
public:
int& operator [](int n)
{
if (n == limit - 1)
{
int temp;
for (int i = 0; i < limit; i++)
{
if (arr[n + 1] > arr[n])
{
temp = arr[n];
arr[n] = arr[n + 1];
arr[n + 1] = temp;
}
}
}
return arr[n];
}
};
int main()
{
safearray sa1;
for(int j = 0; j < limit; j++)
sa1[j] = j*10;
for(int j = 0; j < limit; j++)
{
int temp = sa1[j];
cout << "Element " << j << " is " << temp;
}
return 0;
} #include <iostream>
using namespace std;
class A
{
public:
int x;
A(int n = 0) : x(n) {};
int& operator[](int n)
{
cout << "0" ;
return x;
}
int operator[](int n) const
{
cout << "1" ;
return x;
}
};
void foo(const A& a)
{
int z = a[2];
}
int main()
{
A a(7);
a[3] = 8;
int z = a[2];
foo(a);
return 0;
} #include <iostream>
using namespace std;
class sample
{
private:
int* i;
int j;
public:
sample (int j);
~sample ();
int& operator [] (int n);
};
int& sample::operator [] (int n)
{
return i[n];
}
sample::sample (int j)
{
i = new int [j];
j = j;
}
sample::~sample ()
{
delete [] i;
}
int main ()
{
sample m (5);
m [0] = 25;
m [1] = 20;
m [2] = 15;
m [3] = 10;
m [4] = 5;
for (int n = 0; n < 5; ++ n)
cout << m [n];
return 0;
}Suggested Topics
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