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C++ Data Types
course content

Contenido del Curso

C++ Data Types

C++ Data Types

1. Introduction
OverviewArithmetic OperationsDivision int and doubleStandard MathSpecifying a Type
2. Numerical Data Types
Overview of Integer TypesApplications of Integer TypesType Modifiers for VariablesWorking with Floating-Point NumbersDouble-Precision Numbers
3. Text Data Type
Character Data TypeString Data TypeAccessing and Manipulating String ElementsCommon String MethodsString Manipulation PracticeSearching Within Strings
4. Other Data Types and Concepts
Boolean Data TypeBoolean ExpressionsVoid Data TypeAutomatic Type DeductionUnsigned Data TypesImplicit Type ConversionExplicit Type Conversion

bookString Data Type

Instead of working with individual characters, we usually work with complete words, sentences, or texts sequences of characters. One way to represent these sequences is with a char array, like this:

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
    // The '\0' is a null terminator, used to indicate the end of the string
    // It ensures that the array of characters is treated as a proper string
    char word[6] = { 'H', 'e', 'l', 'l', 'o', '\0' };  
    std::cout << word << std::endl;
}

As you can see, initializing a character array can be tricky. Moreover, modifying the text, such as adding more characters, requires redefining the array with additional memory.

Thankfully, you can use the string class, which simplifies this process significantly.

h

string

copy

              
1

            
std::string text = "Any text in double quotes";

So you can assign to a string any text within double quotes " ". Also, adding more text to a string is as easy as using the .append() method. Here is an example:

cpp

main

copy

              
123456789101112

            
#include <iostream>

int main()
{
    // Declare and initialize a string
    std::string word = "Codefinity";
    std::cout << word << std::endl;
    
    // Use the append() method to add ".com" to the string.
    word.append(".com");  
    std::cout << word << std::endl;
}

Besides .append(), there are many other methods of a string to allow you efficiently operate with text data. Here is the table with some. They will be discussed in more detail in later chapters.

Tarea
test

Swipe to show code editor

  1. Create a string variable and store the name 'Alex' in it.
  2. Output its value to the console.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 2
toggle bottom row

bookString Data Type

Instead of working with individual characters, we usually work with complete words, sentences, or texts sequences of characters. One way to represent these sequences is with a char array, like this:

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
    // The '\0' is a null terminator, used to indicate the end of the string
    // It ensures that the array of characters is treated as a proper string
    char word[6] = { 'H', 'e', 'l', 'l', 'o', '\0' };  
    std::cout << word << std::endl;
}

As you can see, initializing a character array can be tricky. Moreover, modifying the text, such as adding more characters, requires redefining the array with additional memory.

Thankfully, you can use the string class, which simplifies this process significantly.

h

string

copy

              
1

            
std::string text = "Any text in double quotes";

So you can assign to a string any text within double quotes " ". Also, adding more text to a string is as easy as using the .append() method. Here is an example:

cpp

main

copy

              
123456789101112

            
#include <iostream>

int main()
{
    // Declare and initialize a string
    std::string word = "Codefinity";
    std::cout << word << std::endl;
    
    // Use the append() method to add ".com" to the string.
    word.append(".com");  
    std::cout << word << std::endl;
}

Besides .append(), there are many other methods of a string to allow you efficiently operate with text data. Here is the table with some. They will be discussed in more detail in later chapters.

Tarea
test

Swipe to show code editor

  1. Create a string variable and store the name 'Alex' in it.
  2. Output its value to the console.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 2
toggle bottom row

bookString Data Type

Instead of working with individual characters, we usually work with complete words, sentences, or texts sequences of characters. One way to represent these sequences is with a char array, like this:

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
    // The '\0' is a null terminator, used to indicate the end of the string
    // It ensures that the array of characters is treated as a proper string
    char word[6] = { 'H', 'e', 'l', 'l', 'o', '\0' };  
    std::cout << word << std::endl;
}

As you can see, initializing a character array can be tricky. Moreover, modifying the text, such as adding more characters, requires redefining the array with additional memory.

Thankfully, you can use the string class, which simplifies this process significantly.

h

string

copy

              
1

            
std::string text = "Any text in double quotes";

So you can assign to a string any text within double quotes " ". Also, adding more text to a string is as easy as using the .append() method. Here is an example:

cpp

main

copy

              
123456789101112

            
#include <iostream>

int main()
{
    // Declare and initialize a string
    std::string word = "Codefinity";
    std::cout << word << std::endl;
    
    // Use the append() method to add ".com" to the string.
    word.append(".com");  
    std::cout << word << std::endl;
}

Besides .append(), there are many other methods of a string to allow you efficiently operate with text data. Here is the table with some. They will be discussed in more detail in later chapters.

Tarea
test

Swipe to show code editor

  1. Create a string variable and store the name 'Alex' in it.
  2. Output its value to the console.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Instead of working with individual characters, we usually work with complete words, sentences, or texts sequences of characters. One way to represent these sequences is with a char array, like this:

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
    // The '\0' is a null terminator, used to indicate the end of the string
    // It ensures that the array of characters is treated as a proper string
    char word[6] = { 'H', 'e', 'l', 'l', 'o', '\0' };  
    std::cout << word << std::endl;
}

As you can see, initializing a character array can be tricky. Moreover, modifying the text, such as adding more characters, requires redefining the array with additional memory.

Thankfully, you can use the string class, which simplifies this process significantly.

h

string

copy

              
1

            
std::string text = "Any text in double quotes";

So you can assign to a string any text within double quotes " ". Also, adding more text to a string is as easy as using the .append() method. Here is an example:

cpp

main

copy

              
123456789101112

            
#include <iostream>

int main()
{
    // Declare and initialize a string
    std::string word = "Codefinity";
    std::cout << word << std::endl;
    
    // Use the append() method to add ".com" to the string.
    word.append(".com");  
    std::cout << word << std::endl;
}

Besides .append(), there are many other methods of a string to allow you efficiently operate with text data. Here is the table with some. They will be discussed in more detail in later chapters.

Tarea
test

Swipe to show code editor

  1. Create a string variable and store the name 'Alex' in it.
  2. Output its value to the console.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
Sección 3. Capítulo 2
Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
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