What is the use of swap() function in array class?
a) Swaps two elements of an array given elements
b) Swaps two arrays
c) Swaps two elements given indices of elements
d) Swaps same elements of the array if required
Q.2.
What is the syntax of swap()?
a) swap(arr1, arr2);
b) arr1.swap(arr2);
c) swap<int, int>(arr1, arr2);
d) swap[arr1, arr2];
Q.3.
What is the use of empty() function in array classes?
a) To check whether the size of an array is zero or not
b) To check whether an array is empty or not
c) To check how many elements are there in the array
d) To check whether an array contains negative elements or not
Q.4.
What is the use of fill() function in array class?
a) To fill an array with a given single value
b) To delete all the elements that are equal to the given value
c) To replace all the elements of the array which are equal to the given value
d) To check whether given element fills the array or not
Q.5.
What will be the output of the following C++ code?
#include <iostream>
#include <array>
using namespace std;
int main(int argc, char const *argv[])
{
array<int,arr arr1.fill(2);
for(int i=0;i<5;i++)
cout<<arr1[i];
cout<<endl;
return}
a) 22222
b) 20000
c) 00002
d) 20002
Q.6.
What will be the output of the following C++ code?
#include <iostream>
#include <array>
using namespace std;
int main(int argc, char const *argv[])
{
array<int,arr arr1.fill(5);
cout<<get<5>(arr1);
return}
a) 5
b) Compile-time error
c) Run-time error
d) Segmentation fault
Q.7.
What happens when both of the following C++ programs are compiled and executed?
===== Program 1 =====
#include <iostream>
#include <array>
using namespace std;
int main()
{
array<int,arr arr1.fill(5);
cout<<get<5>(arr1);
return}
=====================
===== Program 2 =====
#include <iostream>
#include <array>
using namespace std;
int main()
{
array<int,arr arr1.fill(5);
cout<<arr1.at(5);
return}
=====================
a) Program 1 gives compile-time error and Program 2 gives run-time error
b) Program 1 gives run-time error and Program 2 gives compile-time error
c) Both programs results into compile-time error
d) Both programs results into run-time error
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