Classes And Objects In C Plus Plus - Study Mode
[#141] What will be the output of the following C++ code? #include <iostream>
#include <string>
using namespace std
class A
{
mutable int a
public:
int assign(int i) const {
a = i
}
int return_value() const {
return a
}
}
int main(int argc, char const *argv[])
{
A obj
obj.assign(5)
cout<<obj.return_value()
}
Correct Answer
(A) 5
[#142] What will be the output of the following C++ code? #include <iostream>
#include <string>
using namespace std
int main ()
{
string str ("helloworld.")
cout << str.substr(3).substr(4) << endl
return 0
}
Correct Answer
(B) rld.
[#143] What will be the output of the following C++ code? #include <iostream>
#include <string>
using namespace std
int main(int argc, char const *argv[])
{
char str[] = "Hello World"
cout<<str[0]
return 0
}
Correct Answer
(A) H
[#144] What will be the output of the following C++ code? #include <iostream>
using namespace std
int main()
{
int a = 0
int b = 10
if ( a && b )
{
cout << "true"<< endl
}
else
{
cout << "false"<< endl
}
return 0
}
Correct Answer
(B) false
[#145] What will be the output of the following C++ code? #include <iostream>
using namespace std
int main()
{
typedef int num
num a = 10, b = 15
num c = a + b + a - b
cout << c
return 0
}
Correct Answer
(A) 20