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Exercise"Everything should be made as simple as possible, but not simpler."
- Albert Einstein
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| 6. |
Which of the following function is more appropriate for reading in a multi-word string? |
| A. |
printf(); | B. |
scanf(); | | C. |
gets(); | D. |
puts(); |
Answer: Option C
Explanation:
gets(); collects a string of characters terminated by a new line from the standard input stream stdin
#include <stdio.h>
int main(void)
{
char string[80];
printf("Enter a string:");
gets(string);
printf("The string input was: %s\n", string);
return 0;
}
Output:
Enter a string: IndiaBIX
The string input was: IndiaBIX
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| 7. |
Which of the following function is correct that finds the length of a string? |
| A. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
{ length++; s++; }
return (length);
}
| B. |
int xstrlen(char s)
{
int length=0;
while(*s!='\0')
length++; s++;
return (length);
}
| | C. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
length++;
return (length);
}
| D. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
s++;
return (length);
}
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Answer: Option E
Explanation:
Option A is the correct function to find the length of given string.
Example:
#include<stdio.h>
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
{ length++; s++; }
return (length);
}
int main()
{
char d[] = "IndiaBIX";
printf("Length = %d\n", xstrlen(d));
return 0;
}
Output: Length = 8
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