string resize() in C++

resize(): This function resizes the string to the specified number of characters. 

This function will resize the string to the specified length. 

If the new size is smaller than the string's current size the string is truncated, 

otherwise, the string is extended and new characters are default-constructed.

For basic types such as char, this means setting them to 0.

 Parameters: One parameter is required for this function.

__n – Number of characters the string should contain. 

Syntax:

str.resize(__n)

For Example:

str = "abc"

str.resize(10) => Size of string becomes 10.

Approach

C++

#include <bits/stdc++.h>
using namespace std;

int main()
{
    string str = "abc";

    str.resize(10);

    cout << str.size() << "\n";

    return 0;
}