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Interview Questions on Conditional Statement (if else) in C++ : (7)

Question: 1

//What is the output of below C++ program?

#include <iostream>

int main()
{
 if(0)
 {
    std::cout<<"Hi";
 }
 else
 {
    std::cout<<"Bye";
 }
return 0;
}

(A) Hi
(B) Bye
(C) HiBye
(D) Compilation Error

Compiler
Level: Beginner Category: conditional
[Posted by: | ]

Question: 2

What should be the output of below program?

#include<iostream>

int main()
{
    int a = 1;
    switch(a)
    {
    case 1: std::cout<<"One";
    case 2: std::cout<<"Two";
    case 3: std::cout<<"Three";
    default: std::cout<<"Default";
    }
    return 0;

}

(A) One
(B) Compilation Error
(C) Default
(D) OneTwoThreeDefault

Compiler
Level: Practitioner Category: conditional
[Posted by: | ]

Question: 3

What should be output of below C++ program
if user enters a = 5?

int main()
{
    int a;
    cin>>a; // user can enter any value
    
	if (++a*5 <= 25)
	{
	    cout<<"Hello";
	}
	else
	{
	    cout<<"Bye";	
	}

}

(A) Hello
(B) Bye
(C) Undefined
(D) Compilation Error

Compiler
Level: Practitioner Category: conditional
[Posted by: | ]

Question: 4

What should be printed on screen?

int main() 
{
int x = 5;

if(x++ == 5)
cout<<"Five"<<endl;
else
if(++x == 6)
cout<<"Six"<<endl;

return 0;
}

(A) FiveSix
(B) Five
(C) Six
(D) None of these

Compiler
Level: Practitioner Category: conditional
[Posted by: | ]

Question: 5

//Assume all headers are included
//What should be printed?

int main()
{
char Text[ ] = "Cpp@Buzz";

for(int I=0; Text[I]!='�';I++)
{
if(!isalpha(Text[I]))
Text[I]='*';
else if(isupper(Text[I]))
Text[I]=Text[I]+1;
else
Text[I] = Text[I+1];
}
cout<<Text;

return 0;
}

(A) *pp@*uzz
(B) CPP@BUZZ
(C) cpp@buzz
(D) Dp@*Czz

Compiler
Level: Expert Category: conditional
[Posted by: | ]

Question: 6

#include<iostream>

int main()
{
if(-1 == -1){
std::cout<<"Hey..";
}
else{        std::cout<<"CppBuzz.com";
}

return 0;
}

(A) Hey..
(B) CppBuzz.com
(C) Compilation Error
(D) None of these

Compiler
Level: Practitioner Category: conditional
[Posted by: | ]

Question: 7

#include<iostream>
#include<string.h>
using namespace std;

int main()
{
    char one[]="one";
    char two[]="two";
    
    if(one==two){
        cout<<"Equal";
    }
    
    if(strcmp(one, two)==0){
        cout<<"Equal";
    }
    else
    {
        cout<<"NotEqual";
    }

    return 0;
}

(A) Equal
(B) EqualEqual
(C) EqualNotEqual
(D) NotEqual

Compiler
Level: Practitioner Category: conditional
[Posted by: | ]

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Interview Questions on Conditional Statement (if else) in C++ : (7)

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