C Programming Quiz 2

Which of the following C statements is wrong?

• void main( )

  {

  
  

  }

• void main(void)

  {

  
  

  }

• int main( )

  {

  
  

  return (0);

  }

• int main ( int argc, char *argv[])

  {

  
  

  return 0;

  }

Which should be the printf statement of the following program:

void main()

{

int age = 10;

printf...

}

• printf("I am %d years old.\n");

• printf("I am %f years old.\n", age);

• printf("I am %s years old.\n");

• printf("I am %d years old.\n", age);

Which of the following statements is/are correct?

a. char middle_name='c';

scanf("%c", middle_name);

b. char middle_name="c";

scanf("%c", middle_name);

c. char middle_name='c';

scanf("%s",middle_name);

d. char middle_name='c';

scanf("%c", &middle_name);

• A is correct.

• B is correct.

• C is correct.

• D is correct.

Which printf statement will produce the following output:

C:\document\storage\c'drive "storage" =142.134GB

• printf("C:\document\\storage\c'drive "storage" = 142.134GB");

• printf("C:\\document\\storage\\c'drive "storage" = 142.134GB");

• printf("C:\\document\\storage\\c'drive \"storage\"= 142.134GB");

• printf("C:\\document\\storage\\c\'drive \"storage\" = 142.134GB");

Predict the output.

#include <stdio.h>

int main( ) {

int x=11;

x=printf("%d",x++);

printf("%d",x);

return 0;

}

• 11

• 111

• 112

• 12

Check the following code segment and try to predict what's going to happen?

#include <stdio.h>

int main(){

int x=++2;

printf("%d",x);

return 0;

}

• 3 will be printed on compilation and execution.

• 2 will be printed on compilation and execution.

• compilation error - "Ivalue required".

• runtime error.

What will be the output of the following program:

#include <stdio.h>

void main() n{

char country[20];

printf("Enter the name of your country:\n");

scanf("%s",string1);

printf("\n\nYou have just entered: %s",string1);

}

if the user key in 'Republic of China' as the name of the country?

• You have just entered: Republic of China

• You have just entered: China

• You have just entered: Republic

• You have just entered: Republic Poly

What will be the volume of the Sphere printed out if the user enter the radius as 3.4cm in the following program?

#include <stdio.h>

int main() {

float volume_Sphere, radius, pi=3.1415;

printf("Please enter the radius of the sphere in cm:\n");

scanf("%f",&radius);

volume_Sphere=4/3 *pi*radius*radius*radius;

printf("The volume of the sphere is %.4f cm",volume_Sphere);

return 0;

}

• The volume of the sphere is 123.4735

• The volume of the sphere is 123.47

• The volume of the sphere is 164.63

• The volume of the sphere is 164.6314

What is the value of x after the following initialisation:

int x=5&&6>7||!0&&0;

• 0

• 1

• 6

• 7

Predict the output of the following C program:

#include <stdio.h>

int main( ) {

int x= -1;

int y= -2;

int z=++x || ++y;

printf("%d,%d,%d", x,y,z);

return 0;

}

• 1,-1,1

• 0,-1,0

• 1,0,-1

• 0,-1,1