Templates - C++ Questions and Answers

This is the c++ programming questions and answers section on "Templates" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.

Templates C++ Questions

Online Test Name	Templates
Exam Type	Multiple Choice Questions
Category	Computer Science Engineering Quiz
Number of Questions	30

1. What is a template?

A. A template is a formula for creating a generic class
B. A template is used to manipulate the class
C. A template is used for creating the attributes
D. none of the mentioned

Answer & Explanation

Answer: Option A

Explanation:

A template is a formula for creating a generic class

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2. Pick out the correct statement about string template?

A. It is used to replace a string.
B. It is used to replace a string with another string at runtime.
C. It is used to delete a string.
D. none of the mentioned

Answer & Explanation

Answer: Option B

Explanation:

Every string template is used to replace the string with another string at runtime.

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3. How to declare a template?

A. tem
B. temp
C. template < >
D. none of the mentioned

Answer & Explanation

Answer: Option C

Explanation:

template < >

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What is the output of this program?

#include < iostream >

#include < string >

using namespace std;

template < typename T >

void print_mydata(T output)

{

cout << output << endl;

}

int main()

{

double d = 5.5;

string s("Hello World");

print_mydata( d );

print_mydata( s );

return 0;

}

A.
5.5
Hello World
B. 5.5
C. Hello World
D. none of the mentioned

Answer & Explanation

Answer: Option A

Explanation:

In this program, We are passing the value to the template and printing it in the template.

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5. How many types of templates are there in c++?

A. 1
B. 2
C. 3
D. 4

Answer & Explanation

Answer: Option B

Explanation:

There are two types of templates. They are function template and class template.