C++ - REPLACE ARRAY ELEMENTS

How to change/replace an Item in an Array?

Let us say, we have a Array that contains three names, Mohan, John, Paul, Kriti and Salim.

And we want to replace the name John with a new name Neal.

Example :

#include <iostream>
using namespace std;

int main() {

    string arr[] = {"Mohan", "John", "Paul", "Kriti", "Salim"};

    cout << "\nBefore replacing the second element\n";
    
    for (string str : arr) 
    {
        cout << str << endl;
    }
        
    arr[1] = "Neal";
    
    cout << "\nAfter replacing the second element\n";
    
    for (string str : arr) 
    {
        cout << str << endl;
    }
    
    return 0;    
}

Before replacing the second element

Output :

Mohan
John
Paul
Kriti
Salim

After replacing the second element

Output :

Mohan
Neal
Paul
Kriti
Salim

So, in the above code we have created a Array and initialised to the variable x.

string arr[] = {"Mohan", "John", "Paul", "Kriti", "Salim"};

Now, let us see, how the values are positioned in the Array

Now, if we see the above diagram, John resides at position/index 1. So, what we do is, just replace the position/index 1 (i.e. arr[1]) with the new name Neal.

arr[1] = "Neal";

And the name John gets replaced with Neal.

And we get the below output,

Mohan
Neal
Paul
Kriti
Salim

❮❮ PREV NEXT ❯❯