C++ String at() function

C++ String at function tutorial for beginners and professionals with examples on constructor, if-else, switch, break, continue, comments, arrays, object and class, exception, static, structs, inheritance, aggregation etc.

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C++ String at()

This function is used for accessing individual characters.

Syntax

Consider a string str. To find the position of a particular character, its syntax would be

str.at(pos);

Parameters

pos : It defines the position of the character within the string.

Return value

It returns the character specified at that position.

Example 1

#include<iostream>
using namespace std;
int main()
{
string str = "Welcome to TheDeveloperBlog tutorial";
cout<<"String contains :";
for(int i=0; i<str.length(); i++)
{
cout<<  str.at(i);
} 
cout<<'\n';
cout<<"String is shown again";
for(int j=0 ; j<str.length(); j++)
{
cout<< str[j];
}
return 0;
}

Output:

String contains Welcome to TheDeveloperBlog tutorial

Example shows that we can access the characters by using either the member function at() or the subscript operator[ ].

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