What is the data type of the "argv" variable?

What do input/output objects support?

What type of iterators do maps and sets support?

How to define user-defined exceptions?

What is the output of the following C code?

void main()

{

  char arr[] = "\0";

  if (printf("%s", arr))

    printf("Nothing");

  else

    printf("Something");

}

  Identify the incorrect statement.

#include "stdio.h"

int main()
{
int i = 1, j;
for ( ; ; )
{
if (i)
j = --i;
if (j < 10)
printf("Abekus", j++);
else
break;
}
return 0;

 

What is an endless loop?

 Which of the following two compilation units compile? 

// Compilation Unit A
const int n = 42;
int x[n];

// Compilation Unit B
const int m = 42;
void foo(void) {
   int y[m];
}

What will be the output of the following C++ code?

#include <iostream>

#include <string>

using namespace std;

int main ()

{

       string str="Steve Jobs founded the apple";

       string str2 = str.substr (6, 4);

unsigned pos = str.find("the");

       string str3 = str.substr (pos);

cout << str2 << ' ' << str3 << '\n';

return 0;

}