In this C++ tutorial, you will get an introduction to strings in C++ programming language. There are also a list of tutorials that get you started with the basics of strings, and then cover the most commonly used string operations.

C++ String

In C++, String is an object of class type std::string. This type of object represents a sequence or string of characters, hence called a string.

The following is an example for a string.

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"Hello World"

This string contains 11 characters. In C++, the string constant is enclosed in double quotes.

string keyword is used to specify the datatype of a variable.

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string s = "Hello World";

In this tutorial, we will go through most used C++ String Operations with examples.

C++ String Tutorials

The following are tutorials based on string operations, and are categorized based on the type of operations done at string level, or character level.

Basics

  1. C++ Create empty string
  2. C++ String length

Find / Get / Access

  1. C++ Substring
  2. C++ String – Get character at specific index
  3. C++ String – Get first character
  4. C++ String – Get last character
  5. C++ String – Get first n characters
  6. C++ String – Get last n characters
  7. C++ String – Find index of substring
  8. C++ String – Iterate over characters
  9. C++ String – Print unique characters

Checks

  1. C++ Check if string is empty
  2. C++ Check if strings are equal
  3. C++ Check if string contains specific substring
  4. C++ Check if string contains specific character
  5. C++ Check if string contains only digits
  6. C++ Check if string contains only spaces
  7. C++ Check if string contains only certain character
  8. C++ Check if string starts with specific prefix
  9. C++ Check if string ends with specific suffix
  10. C++ Check if string is number
  11. C++ String comparison

Manipulations

The following tutorials cover use cases where part or whole of the string value is manipulated.

  1. C++ Append string
  2. C++ Concatenate strings
  3. C++ String reverse
  4. C++ String replace
  5. C++ Swap strings
  6. C++ Convert string to uppercase
  7. C++ Convert string to lowercase
  8. C++ Repeat string N times

Character Level Manipulations

  1. C++ String – Append character at the end
  2. C++ String – Append character at beginning
  3. C++ String – Insert character at specific index
  4. C++ String – Remove first character
  5. C++ String – Remove last character
  6. C++ String – Replace specific character with another
  7. C++ String – Remove all occurrences of a specific character

Conversions

The following tutorials cover use cases like converting given string into other datatypes, or vice versa.

  1. C++ Convert string to integer
  2. C++ Convert integer to string
  3. C++ Convert string to char array
  4. C++ Convert char array to string

Conclusion

In this C++ Tutorial, we learned how to do some of the String Operations with the help of example programs and detailed tutorials.