main.h
public cpp v1 · immutable#ifndef MAIN_H#define MAIN_H#include <QApplication>#include <QLineEdit>#include <QWidget>#include <QPushButton>#include <QVBoxLayout>#include <QString>#include <QObject>class window : public QWidget{ Q_OBJECT public: window (QWidget *parent =0); public slots: void calculate(); private: QLineEdit *txtnum1; QLineEdit *txtnum2; QLineEdit *txtans; QPushButton *buttoncalc; QPushButton *buttonexit;};#endif