One of the most useful data types provided in C++ libraries is a string. In this article, I will introduce you to the concept of strings in C++ programming language.
Introduction to Strings in C++
Strings are variables that store a sequence of letters or other characters, such as “Hello” or “September 3rd is my birthday!”. Just like other data types, to create a string, we first declare it and then we can store a value in it.
Declaring strings is the same as declaring other data types in the C ++ programming language:
string testString; testString = "This is a string.";
We can also combine the above two statements into one line:
string testString = "This is a string.";
Often we use strings as output, and cout works just as you might expect:
cout << testString << endl; cout << "This is a string." << endl;
To use the String data type, the C++ String header must be included at the top of the program. Additionally, you will need to include using namespace std; to make the short name string visible instead of requiring the cumbersome std :: string.
C++ Program to Count the Number of Characters in a String:
The length method returns the number of characters in a string, including spaces and punctuation. Like many string operations, the length is a member function, and we call member functions using dot notation.
The string that is the sink is to the left of the point, the member function we are invoking is to the right, (eg str.length ()). In such an expression, we ask for the length of the variable str. Now let’s write a program in C++ to count the number of characters in a string:
The small string is 10 characters.
The long string is 23 characters.
I hope you liked this article on the concept of strings in C++ programming language. Feel free to ask your valuable questions in the comments section below.