Qt5 Tutorial QLinkedList - 2020

In this tutorial, we will learn about QLinkedList.

The QLinkedList class is a template class that provides linked lists.

QLinkedList<T> is one of Qt's generic container classes. It stores a list of values and provides iterator-based access as well as constant time insertions and removals.

#include <QCoreApplication>
#include <QLinkedList>
#include <QDebug>
#include <QString>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    
    QLinkedList<QString> List;

    List << "A" << "B" << "C";
    List.append("D");
    List.append("E");
    List.append("F");

    foreach(QString s, List) qDebug() << s;

    return a.exec();
}

Output:

"A"
"B"
"C"
"D"
"E"
"F"

QLinkedList stores a list of items. The default constructor creates an empty list. To insert items into the list, we can use operator<<().