Changes in C++ classes

In this recipe, we will learn what the changes in Qt6’s C++ classes are.

How to do it…

Follow these steps to learn about C++ classes in Qt6:

1. Create a new Qt Console Application by going to File | New Project.
2. We will open up the main.cpp file and add the following headers:

   #include <QCoreApplication>
   #include <QDebug>
   #include <QLinkedList>
   #include <QRegExp>
   #include <QStringView>
   #include <QTextCodec>
   #include <QTextEncoder>
   #include <QTextDecoder>

3. After that, add the following code for demonstrating the QLinkedList class:

   int main(int argc, char *argv[])
   {
       QCoreApplication a(argc, argv);
       // QLinkedList
       QLinkedList<QString> list;
       list << "string1" << "string2" << "string3";
       QLinkedList<QString>::iterator...