Print the given 3 string after modifying and concatenating

CServer Side ProgrammingProgramming

Input three strings and replace each string with a character which user has entered and then display edited strings. After that, concatenate edited strings and display them.

   string 1 : tutorials replacement character for string 1 : x
   String 2 : points replacement character for string 2 : y
   String 3: best replacement character for string 3 : z
Output :
   string 1: xxxxxxxxx
   String 2 :yyyyyy
   String 3 : zzzz
   After concatenation : xxxxxxxxxyyyyyyzzzz


Step 1-> declare three array of characters str1, str2 and str3 with variables as ch1, ch2 and ch3 and int
variable as i
Step 2-> input strings str1, str2, and str3 with replacements characters as ch1, ch2, ch3
Step 3-> Loop For from i to 0 and i < strlen(str1) and i++
   Set str1[i]=ch1
   End For Loop
Step 4-> Loop For from i to 0 and i < strlen(str2) and i++
   Set str2[i]=ch2
   End For Loop
Step 5-> Loop For from i to 0 and i < strlen(str3) and i++
   Set str3[i]=ch3
   End For Loop
Step 6-> print edited string str1, str2 and str3
Step 7 -> concatenate str1 with str2 and store in str1
Step 8 -> concatenate str1 with str3 and store in str1
Step 9 -> print concatenated string


int main() {
   char str1[1000],str2[1000],str3[1000],ch1,ch2,ch3;
   int i;
   printf("\nenter a string : ");
   scanf("%s\n%s\n%s", &str1, &str2, &str3);
   printf("\nenter the character you want to replace your first, second and third string with ? ");
   scanf("%c %c %c", &ch1, &ch2, &ch3);
   for (i = 0; i < strlen(str1); i++) //replacing string 1 with ch1
   for (i = 0; i < strlen(str2); i++) //replacing string 2 with ch2
   for (i = 0; i < strlen(str3); i++) //replacing string 3 with ch3
   printf("string 1 after replacement with %c : %s\n",ch1,str1);
   printf("string 2 after replacement with %c : %s\n",ch2,str2);
   printf("string 3 after replacement with %c : %s\n",ch3,str3);
   strcat(str1,str2); //conactenate string 1 and string 2
   strcat(str1,str3); //conactenate string 1 and string 2
   printf("string after concatenation : %s",str1);
   return 0;


If we run the above program then it will generate the following output

enter a string : tutorials
enter the character you want to replace your first, second and third string with ?
string 1 after replacement with x : xxxxxxxxx
string 2 after replacement with y : yyyyy
string 3 after replacement with z : zzzz
string after concatenation : xxxxxxxxxyyyyyzzzz
Published on 29-Jul-2019 13:07:05