C++ String back() function

C++ String back() 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 back()

This function is used to access the last character of string.

Syntax

Consider a string s. Syntax would be:

s.back();

Parameter

This function does not contain any parameter.

Return value

This function returns the reference of last character of the string.

Example

Let's see the simple example to add a mew character at the end of the string

#include
using namespace std;
int main()
{
	string str ="BTech in computer science .";
	char &back=str.back();
	back='!';
	 cout<

Output:

BTech in computer science

In this example, '.' character has been replaced by the '!' character by using back function.

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