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Replacing words with asterisks in C++
This aim of this program to replace a particular word with asterisks in the string by using the c++ programming code. The essential function of vector and string class essay a key role to achieve the prospective results. The algorithm is as follows;
Algorithm
START Step-1: Input string Step-2 Split the string into words and store in array list Step-3: Iterate the loop till the length and put the asterisk into a variable Step-4: Traverse the array foreah loop and compare the string with the replaced word Step-5: Print END
Now, the following code is carved out based on the algorithm. Here, the strtok() method of string split the string and returns the array list type of vector class.
Example
#include <cstring>
#include <iostream>
#include <vector>
#include <string.h>
//method for spliting string
std::vector<std::string> split(std::string str,std::string sep){
char* cstr=const_cast<char*>(str.c_str());
char* current;
std::vector<std::string> arr;
current=strtok(cstr,sep.c_str());
while(current!=NULL){
arr.push_back(current);
current=strtok(NULL,sep.c_str());
}
return arr;
}
int main(){
std::vector<std::string> word_list;
std::cout<<"string before replace::"<<"Hello ajay yadav ! you ajay you are star"<<std::endl;
std::cout<<"word to be replaced::"<<"ajay"<<std::endl;
word_list=split("Hello ajay yadav ! you ajay you are star"," ");
std::string result = "";
// Creating the censor which is an asterisks
// "*" text of the length of censor word
std::string stars = "";
std::string word = "ajay";
for (int i = 0; i < word.length(); i++)
stars += '*';
// Iterating through our list
// of extracted words
int index = 0;
for (std::string i : word_list){
if (i.compare(word) == 0)
// changing the censored word to
// created asterisks censor
word_list[index] = stars;
index++;
}
// join the words
for (std::string i : word_list){
result += i + ' ';
}
std::cout<<"output::"<<result;
return 0;
}
}As seen in the above code, all string operation code is bundled into the retrieveChar() method, later on, which call is passed to program main() execution.
Output
String before replace::Hello ajay yadav ! you ajay you are star Word to be replaced::ajay Output::Hello **** yadav ! you **** you are star
Updated on: 29-Nov-2019
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