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
Answer
Answer: b [Reason:] None.
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
Answer
Answer: b [Reason:] None.
3. What is the output of this C code?
-
#include <stdio.h> -
int main()
-
{ -
int i = 10, j = 2;
-
printf("%dn", printf("%d %d ", i, j));
-
}
a) Compile time error
b) 10 2 4
c) 10 2 2
d) 10 2 5
Answer
Answer: d [Reason:] None.
4. What is the output of this C code?
-
#include <stdio.h> -
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
Answer
Answer: c [Reason:] None.
5. What is the output of this C code?
-
#include <stdio.h> -
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
Answer
Answer: c [Reason:] None.
6. What is the output of this C code?
-
#include <stdio.h> -
int main()
-
{ -
char *s = "myworld";
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int i = 9;
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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
Answer
Answer: b [Reason:] None.
7. What is the output of this C code?
-
#include <stdio.h> -
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)
Answer
Answer: d [Reason:] None.
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
Answer
Answer: b [Reason:] None.
