#include <qapplication.h>#include <qlabel.h>class MyMainWindow:public QWidget{ public:    MyMainWindow(); private:    QLabel *text;};MyMainWindow::MyMainWindow(){ setGeometry(100,100,170,100); text = new QLabel(this); text->setGeometry(10,10,150,80); text->setText("This is a \nQlabel Object !"); text->setAlignment(AlignHCenter|AlignVCenter);}main(int argc,char **argv){ QApplication a(argc,argv); MyMainWindow w; a.setMainWidget(&w); w.show(); a.exec();}