Statements(C++ Programming ) Questions and Answers

Question 1.

Which looping process is best used when the number of iterations is known?


  1.    for
  2.    while
  3.    do-while
  4.    all looping processes require that the iterations be known
Explanation:-
Answer: Option A. -> for

None.


Question 2.

How many types of loops are there?


  1.    4
  2.    2
  3.    3
  4.    1
Explanation:-
Answer: Option A. -> 4

There are four types of loop. They are while, do while, nested, for loop.


Question 3.


What is the output of this program?


1.
#include
2.
using namespace std;
3.
int main()
4.
{
5.
int i;
6.
for (i = 0; i < 10; i++);
7.
{
8.
cout
  1.    0123456789
  2.    10
  3.    012345678910
  4.    compile time error
Explanation:-
Answer: Option B. -> 10

for loop with a semicolon is called as body less for loop. It is used only for incrementing the 

variable values. So in this program the value is incremented and printed as 10.
Output:
$ g++ stat2.cpp
$ a.out
10


Question 4.


What is the output of this program?


1.
#include
2.
using namespace std;
3.
int main()
4.
{
5.
int n = 15;
6.
for ( ; ;)
7.
cout
  1.    error
  2.    15
  3.    infinite times of printing n
  4.    none of the mentioned
Explanation:-
Answer: Option C. -> infinite times of printing n

There is not a condition in the for loop, So it will loop continuously.


Question 5.


What is the output of this program?


1.
#include
2.
using namespace std;
3.
int main()
4.
{
5.
int a = 10;
6.
if (a < 15)
7.
{
8.
time:
9.
cout
  1.    1010
  2.    10
  3.    infinitely print 10
  4.    compile time error
Explanation:-
Answer: Option D. -> compile time error

Because the break statement need to be presented inside a loop or a switch statement.


Question 6.

The destination statement for the goto label is identified by what label?


  1.    $
  2.    @
  3.    *
  4.    :
Explanation:-
Answer: Option D. -> :

None.


Question 7.

The switch statement is also called as?


  1.    choosing structure
  2.    selective structure
  3.    certain structure
  4.    none of the mentioned
Explanation:-
Answer: Option B. -> selective structure

The switch statement is used to choose the certain code to execute, So it is also called as 

selective structure.


Question 8.


What is the output of this program?


1.
#include
2.
using namespace std;
3.
int main ()
4.
{
5.
int n;
6.
for (n = 5; n > 0; n--)
7.
{
8.
cout
  1.    543
  2.    54
  3.    5432
  4.    53
Explanation:-
Answer: Option A. -> 543

Inthis program, We are printing the numbers in reverse order but by using break statement we 

stopped printing on 3.
Output:
$ g++ stat.cpp
$ a.out
543


Question 9.

The if..else statement can be replaced by which operator?


  1.    Bitwise operator
  2.    Conditional operator
  3.    Multiplicative operator
  4.    none of the mentioned
Explanation:-
Answer: Option B. -> Conditional operator

In the conditional operator,it will predicate the output using the given condition.


Question 10.

How many sequence of statements are present in c++?


  1.    4
  2.    3
  3.    5
  4.    6
Explanation:-
Answer: Option C. -> 5

There are five sequence of statements. They are Preprocessor directives,Comments,Declarations,

Function Declarations,Executable statements.


© Lakshya_Education.com, All Right Reserved.
Contact Us services