OCS752 Introduction to C Programming

What will be printed if we execute following program ?

#include<stdio.h>

int main()

{

float a = 0.3;

if(0.3 > a)

printf("True\n");

else

printf("False\n");

return 0;

}

• False

• True False

• True

• None of These

Guess the output of the program ?

#include<stdio.h>

int main()

{

int i = 1, j = 2;

if(i = 1) && if(j = 2)

printf("India is my country");

return 0;

}

• Error: Undeclared identifier if

• Error : Expression Syntax Error

• Error: Misplaced If

• No output and No Error

How many times loop will get executed ?

#include<stdio.h>

int main()

{

int i = 0;

while(i <= 255)

{

printf("%d", i);

i++;

}

return 0;

}

• Infinite Times

• 255 Times

• 256 Times

• 1 Time

Predict the output of the program ?

#include<stdio.h>

int main()

{

if(printf("ABC"))

printf("True");

else

printf("False");

return 0;

}

• True

• ABCFalse

• ABC

• ABCTrue

Guess the output of the following program ?

#include<stdio.h>

int main()

{

int x=10;

printf("%d, %d, %d\n", x <= 10, x = 40, x >= 10);

return 0;

}

• 1, 1, 1

• 1, 40, 1

• 0, 40, 1

• 0, 1, 1

Predict the output of the following code ?

#include<stdio.h>

int main()

{

int i = 10;

printf("%d, %d\n", ++i, i++);

return 0;

}

• 12, 10

• 12, 11

• 12, 12

• Output may Vary from Compiler to Compiler

What is the most preferred function to read a string in C?

• scanf()

• gets()

• fgets()

• strcpy()

Which of the following is treated as a real number by default?

• float

• long

• double

• long double

Predict the output of the following code segment:

int main()

{

const int limit = 10;

limit++;

printf("%d", limit);

return 0;

}

• Compile error

• 10

• 11

• 0

Predict the output of the following code segment:

int main()

{

int number1 = -17;

int number2 = -5;

int result = number1 % number2;

printf("%d",result);

return 0;

}

• 2

• -2

• 3,4

• -3,4