72. WRITE A C PROGRAM USING STRING HANDLING FUNCTIONS

a)strlwr b)strupr c)strrev

a) C – strlwr() function

#include<stdio.h>
#include<string.h>
int main()
{
char str[ ] = "MODIFY THIS STRING TO LOWER";
printf("%s\n",strlwr (str));
return 0;
}

output

modify this string to lower

b) C – strupr() function

#include<stdio.h>
#include<string.h>

int main()
{
char str[ ] = "Modify This String To Upper";
printf("%s\n",strupr(str));
return 0;
}

output

MODIFY THIS STRING TO UPPER

c) C – strrev() function

#include<stdio.h>
#include<string.h>

int main()
{
char name[30] = "Hello";

printf("String before strrev( ) : %s\n",name);

printf("String after strrev( ) : %s",strrev(name));

return 0;
}

output

String before strrev( ) : Hello
String after strrev( ) : olleH