The **`replace` method** of the *String* class replaces a portion of a​ string that begins at a specific starting position and spans a specific number of characters. 

 The *starting position*, the *number of characters*, and the respective *replacement string* are all ​passed as arguments. 

# Code

The example below shows how the `replace` method is used to modify strings:

#include <iostream>
#include <string>
using namespace std;

int main() {
  string str = "Welcome to Educative!";

  // replace "come" of "Welcome" with "abcd".
  // starting position = 3, length = 4, 
  // replacement string = "abcd"
  str.replace(3,4,"abcd");
  cout << str << endl;

  return 0;
}

What is the string replace function in C++?

Syntax

Code