Problem 38
#include <stdio.h>
#include <string.h>
int main(){
//38. Write a program to replace a character in given string.
char str[100],ch,ch2;
int i,signal=0;
printf("\tReplace_Character");
printf("\n=========================================\n\n");
printf("Enter Your String : ");
gets(str);
// printf("\nYour String Is : ");
// puts(str);
printf("\nEnter The Character To Replace : ");
scanf(" %c",&ch);
printf("\nEnter The New Character To Replace %c : ",ch);
scanf(" %c",&ch2);
printf("\n-----------------------------------------\n");
for(i=0;str[i] != '\0';i++){
if(ch == str[i]){
str[i] = ch2;
signal = 1;
}
}
if(signal == 0){
printf("\n\n%c Is Not Found In Given String",ch);
}
printf("\nNew String Is : ");
puts(str);
printf("\n-----------------------------------------\n");
return 0;
}
- This is a C program to replace a character in a given string.
- The program includes the necessary header files for standard input-output and string manipulation functions.
- The main function is defined.
- The string 'str' is declared with a size of 100 characters, and the characters 'ch' and 'ch2' are declared.
- The program displays a message asking the user to enter a string.
- The user inputs a string using the gets() function.
- The program asks the user to enter the character to be replaced.
- The user inputs the character using the scanf() function.
- The program asks the user to enter the new character.
- The user inputs the new character using the scanf() function.
- A loop is used to iterate through the string 'str' until the end of the string ('\0') is reached.
- If the character 'ch' is found in the string, it is replaced with the new character 'ch2', and the 'signal' variable is set to 1.
- If the 'signal' variable remains 0, it means that the character 'ch' was not found in the string.
- The program displays the modified string using the puts() function.
- The main function returns 0, indicating successful execution of the program.
