What is the size of wchar_t in C++?
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C++ Programming · all questionsVariables and Data Types in C++
Variables and Data Types in C++
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
123
Questions
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What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int main()
{
int x = -1;
unsigned int y = 2;
if(x > y)
{
cout << "x is greater";
}
else
{
cout << "y is greater";
}
}Select an option to see the answer and solution.
What will be the output of the following C++ code?
#include <iostream>
using namespace std;
void addprint()
{
static int s = 1;
s++;
cout << s;
}
int main()
{
addprint();
addprint();
addprint();
return 0;
}Select an option to see the answer and solution.
What is the value of p in the following C++ code?
#include <iostream>
using namespace std;
int main()
{
int p;
bool a = true;
bool b = false;
int x = 10;
int y = 5;
p = ((x | y) + (a + b));
cout << p;
return 0;
}Select an option to see the answer and solution.
What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int f(int p, int q)
{
if (p > q)
return p;
else
return q;
}
main()
{
int a = 5, b = 10;
int k;
bool x = true;
bool y = f(a, b);
k =((a * b) + (x + y));
cout << k;
}Select an option to see the answer and solution.
Which of these expressions will return true if the input integer v is a power of two?
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What constant defined in <climits> header returns the number of bits in a char?
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What will be the output of the following C++ code?
#include <stdio.h>
int main()
{
char a = '\012';
printf("%d", a);
return 0;
}Select an option to see the answer and solution.
What will happen when defining the enumerated type?
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When a language has the capability to produce new data type mean, it can be called as
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Which of the given statements are false
i. extern int func;
ii. extern int func2(int,int);
iii. int func2(int,int);
iv. extern class foo;
i. extern int func;
ii. extern int func2(int,int);
iii. int func2(int,int);
iv. extern class foo;
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What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int main()
{
int i = 3;
int l = i / -2;
int k = i % -2;
cout << l << k;
return 0;
}Select an option to see the answer and solution.
What does the following statement mean?
void a;Select an option to see the answer and solution.
What is the value of the following 8-bit integer after all statements are executed?
int x = 1;
x = x << 7;
x = x >> 7;Select an option to see the answer and solution.
What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int main()
{
int num = 0x20 + 020 + 20;
cout << sizeof(num)<<'\n';
return 0;
}Select an option to see the answer and solution.
Which of the following will not return a value?
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Suppose in a hypothetical machine, the size of char is 32 bits. What would sizeof(char) return?
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Is bool a fundamental data type in C++?
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What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int main()
{
int a = 8;
cout << "ANDing integer 'a' with 'true' :" << (a && true);
return 0;
}Select an option to see the answer and solution.
Which data type is used to represent the absence of parameters?
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