Question

6.10.1: Modify a C string parameter. Complete the function to replace any period by an exclamation point. Ex: "Hello. I'm Miley. Nice to meet you." becomes: "Hello! I'm Miley! Nice to meet you!"

Answer 1

Answer:

#include <iostream>

#include <cstring>

using namespace std;

void replacePeriod(char* phrase) {

int i = 0;

while(*(phrase + i) != '\0')

{

if(*(phrase + i) == '.')

*(phrase + i) = '!';

i++;

}

}

int main() {

const int STRING_SIZE = 50;

char sentence[STRING_SIZE];

strcpy(sentence, "Hello. I'm Miley. Nice to meet you.");

replacePeriod(sentence);

cout << "Updated sentence: " << endl;

cout << sentence << endl;

return 0;

}

Explanation:

• Create a function called replacePeriod that takes a pointer of type char as a parameter.
• Loop through the end of phrase, check if phrase has a period and then replace it with a sign of exclamation.
• Inside the main function, define the sentence and pass it as an argument to the replacePeriod function.
• Finally display the updated sentence.