C++ Programming Questions and Answers – Tuples – 1

This set of C++ Programming Multiple Choice Questions & Answers (MCQs) focuses on “Tuples – 1”.

1. What are the tuples in C++?
a) Objects that can hold more than one element of different types
b) Objects that can hold a single element of complex type
c) Objects that can hold more than one element of the same types
d) Objects that can hold a single element of fundamental type
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2. Which of the following is correct about tuples?
a) A tuple can hold more than one element
b) A tuple can hold elements having different types
c) Elements of tuples are initialized in order
d) All of the mentioned
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3. Which header file is required to use tuples in your program?
a) <stl>
b) <array>
c) <slgorithm>
d) <tuple>
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4. Which of the following is the correct way of declaring a tuple?
a) tuple tp<type1, type2, type3>;
b) tuple tp = new tuple<type1, type2, type3>;
c) tuple <type1, type2, type3> tp;
d) Tuple <type1, type2, type3> tp;
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5. Which of the following function is used to initialize a tuple?
a) make()
b) make_pair()
c) make_tuple()
d) make_Tuple()
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6. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <tuple>
using namespace std;
int main()
{
	tuple <int, char, string> tp = {"Hello", 1, 's'};
	return 0;
}

a) Nothing is printed
b) Compile-time error
c) Run-time error
d) Exception occurs
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7. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <tuple>
using namespace std;
int main()
{
	tuple <int, char, string> tp;
	tp = make_tuple(4, '1', "Hello");
	return 0;
}

a) Nothing is printed
b) Compile-time error
c) Run-time error
d) Exception occurs
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8. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <tuple>
using namespace std;
int main()
{
	tuple <int, char, string> tp;
	tp = make_tuple("Hello", 4, 'c');
	return 0;
}

a) Nothing is printed
b) Compile-time error
c) Run-time error
d) Exception occurs
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9. What is the use of get() function in tuples?
a) To access an element of a tuple
b) To print an element of a tuple
c) To check whether the element of the tuple is empty
d) To delete an element
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10. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <tuple>
using namespace std;
int main()
{
	tuple <int, char, string> tp;
	tp = make_tuple(4, '1', "Hello");
	cout<<get<0>(tp)<<endl;
	cout<<get<1>(tp)<<endl;
	cout<<get<2>(tp)<<endl;
	return 0;
}

a)

1
Hello
4

b)

4
Hello
1

c)

Hello
4
1

d)

4
1
Hello

Sanfoundry Global Education & Learning Series – C++ Programming Language.

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