(Qt6 : 16-1) QThread

#include <QCoreApplication>
#include <QThread>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QThread *thread = QThread::currentThread();
    thread->setObjectName("Main Thread");

    qInfo() << "Starting" << thread;

    for(int i = 0; i < 10; i++)
    {
        qInfo() << i << "on" << thread;
    }
    qInfo() << "Finished" << thread;



    return a.exec();
}

// Task.h

#ifndef TASK_H
#define TASK_H

#include <QObject>
#include <QThread>
#include <QDebug>

class Task : public QObject
{
    Q_OBJECT
public:
    explicit Task(QObject *parent = nullptr);
    ~Task();

signals:

public slots:
    void work();

};

#endif // TASK_H

#include "task.h"

Task::Task(QObject *parent) : QObject(parent)
{
    qInfo() << "Constructed" << this << "on" << QThread::currentThread();
}

Task::~Task()
{
    qInfo() << "Deconstructed" << this << "on" << QThread::currentThread();
}

void Task::work()
{
    QThread *thread = QThread::currentThread();

    qInfo() << "Starting" << thread;
    for(int i = 0; i < 10; i++)
    {
        qInfo() << i << "on" << thread;
    }
    qInfo() << "Finished" << thread;
}

#include <QCoreApplication>
#include <QThread>
#include <QDebug>
#include <QScopedPointer>
#include "task.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QThread::currentThread()->setObjectName("Main Thread");
    QThread worker;
    worker.setObjectName("Worker Thread");

    qInfo() << "Starting work" << QThread::currentThread();
    //Task *task = new Task(&a);
    QScopedPointer<Task> t(new Task()); //Auto delete
    Task *task = t.data();
    task->moveToThread(&worker);

    worker.connect(&worker,&QThread::started, task,&Task::work);
    //Connect to QThread::finished if you need to know when the thread is done

    worker.start();
    qInfo() << "Free to do other things..." << QThread::currentThread();

    return a.exec();
}