C MCQs: Formatted Output- Part 2

Welcome to MCQ QUIZ for preperation for C programming tests for various interviews:

Here is a listing of advanced C interview questions on Formatted Output along with answers, explanations and/or solutions:

1. What does this statement printf(“%10s”, state); means?

a) 10 spaces before the string state is printed
b) Print empty spaces if the string state is less than 10 characters
c) Print the last 10 characters of the string
d) None of the mentioned

2. What are the Properties of first argument of a printf functions?

a) It is defined by user
b) It keeps the record of the types of arguments that will follow
c) There may no be first argument
d) None of the mentioned

3. What is the output of this C code?

#include 
 int main()
 {
 int i = 10, j = 2;
 printf("%d\n", printf("%d %d ", i, j));
 }

a) Compile time error
b) 10 2 4
c) 10 2 2
d) 10 2 5

4. What is the output of this C code?

#include 
 int main()
 {
 int i = 10, j = 3;
 printf("%d %d %d", i, j);
 }

a) Compile time error
b) 10 3
c) 10 3 some garbage value
d) Undefined behaviour

5. What is the output of this C code?

#include 
 int main()
 {
 int i = 10, j = 3, k = 3;
 printf("%d %d ", i, j, k);
 }

a) Compile time error
b) 10 3 3
c) 10 3
d) 10 3 somegarbage value

6. What is the output of this C code?

#include 
 int main()
 {
 char *s = "myworld";
 int i = 9;
 printf("%*s", i, s);
 }

a) myworld
b) myworld(note: spaces to the left of myworld)
c) myworld (note:followed by two spaces after myworld)
d) Undefined


7. What is the output of this C code?

#include 
 int main(int argc, char **argv)
 {
 char *s = "myworld";
 int i = 3;
 printf("%10.*s", i, s);
 }

a) myw
b) myworld(note:2 spaces before myworld)
c) myworld (note:2 spaces after myworld)
d) myw(note:6 spaces after myworld)


8. What is the difference between %e and %g ?
a) %e output formatting depends on the argument and %g always formats in the format [-]m.dddddd or [-]m.dddddE[+|-]xx where no.of ds are optional.
b) %e always formats in the format [-]m.dddddd or [-]m.dddddE[+|-]xx where no.of ds are optional and output formatting depends on the argument.
c) No differences
d) Depends on the standard

 

 

Next –> C MCQs: Variable Length Arguments- Part 1

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