Russian Qt Forum

#ifndef MYDIALOG_H
#define MYDIALOG_H

#include <QDialog>

namespace Ui {
class myDialog;
}

class myDialog : public QDialog
{
    Q_OBJECT

public:
    explicit myDialog(QWidget *parent = 0);
    ~myDialog();

private:
    Ui::myDialog *ui;
};

#endif // MYDIALOG_H

namespace Ui {
class myDialog;
}

private:
Ui::myDialog *ui;

#include "ui_extensionsorter.h"

class ExtensionSorter : public QWidget
{
	Q_OBJECT

public:
	ExtensionSorter(QWidget *parent = 0, Qt::WFlags flags = 0);
	~ExtensionSorter();

private:
	Ui::ExtensionSorterClass ui;
}

#include <QCoreApplication>
#include <QDebug>
#include <QFile>
#include <QFileInfo>
#include <QString>

void Write(QString fileName)
{
    QFile mFile(fileName);

     if (!mFile.open(QFile::WriteOnly | QFile::Text))
     {
         qDebug() << "Could not open the file!";
         return;
     }

     QTextStream out(&mFile);
     out << "Hello world!"; 
     mFile.flush();
     mFile.close();

}

void Read(QString fileName)
{
    QFile mFile(fileName);

     if (!mFile.open(QFile::ReadOnly | QFile::Text))
     {
         qDebug() << "Could not open the file!";
         return;
     }

     QTextStream in(&mFile);
     QString mText = in.readAll();
     qDebug() << mText;

     mFile.close();
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QString mFileName = "/Users/max/myfile.txt";

    Write(mFileName);
    Read(mFileName);

    return a.exec();
}