C - Strings

What is the return value of the following statement if it is placed in C program? strcmp(“ABC”,”ABC”);

• 33

• -1

• 1

• 0

Which built in function is used to convert string to lowercase

• strlen()

• strlwr()

• strcmp()

• strrev()

Which is not a built in function

• string()

• strlen()

• strcat()

• strrev()

String is an array of characters with …….. character as the last element of array.

• Null

• Empty

• 0

• 1

What is the format specifier used to print or read a character in an array in Printf or Scanf function?

• %C

• %f

• %w

• %c

Which of the following function is more appropriate for reading in a multi-word string?

• scanf()

• gets()

• printf()

• puts()

The library function used to copy a string to another is

• strncpy()

• strcmp()

• strcpy()

• strchr()

String is initialized with datatype

• float

• char

• int

• double

Strcat() function adds null character

• Only if there is space

• Always

• Depends on the standard

• Depends on the compiler

What will be the output of the below program

#include <stdio.h>

#include <string.h>

int main( )

{

   char source[ ] = " fresh2refresh" ;

   char target[ ]= " C tutorial" ;

   strcat ( target, source ) ;

   printf ( "\nTarget string after strcat( ) = %s", target ) ;

}

• Target string after strcat( ) =  fresh2refresh

• Target string after strcat( ) =  C tutorial

• Target string after strcat( ) =

• Target string after strcat( ) = C tutorial fresh2refresh