text: #include <QApplication>
  #include <QPushButton>
  #include "window.h"
  
  int main (int argc, char* argv[]) {
      QApplication app (argc, argv);
  /*
      //ex1
      QPushButton button;
      button.setText("My text");
      button.setToolTip("A tooltip");
      button.show();
  
      QFont font ("Courier");
      button.setFont(font);
  
      button.setIcon(QIcon::fromTheme("face-smile"));
  
      //ex2
      QWidget window;
      window.setFixedSize(100, 50);
  
      QPushButton *button = new QPushButton ("Hello World", &window);
      button->setGeometry(10, 10, 80, 30);
  
      window.show();
  */
  
      Window window;
      window.show();
  
      return app.exec();
  }
  