package com.example;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Home extends JFrame implements ActionListener {

    JMenuBar menuBar;
    JMenu menu;
    //    库存菜单    进货菜单       销售菜单
    JMenuItem StockMenuItem,InventoryMenuItem,SalesMenuItem;

    Home() {
        super("城市进销存信息管理系统");
        menuBar = new JMenuBar();
        menu = new JMenu("菜单");
        StockMenuItem = new JMenuItem("库存信息管理");
        InventoryMenuItem = new JMenuItem("进货信息管理");
        SalesMenuItem = new JMenuItem("销售信息管理");
        menu.add(StockMenuItem);
        menu.add(InventoryMenuItem);
        menu.add(SalesMenuItem);
        menuBar.add(menu);
        setJMenuBar(menuBar);
        StockMenuItem.addActionListener(this);
        InventoryMenuItem.addActionListener(this);
        SalesMenuItem.addActionListener(this);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100,100,500,500);
        setVisible(true);
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource()==StockMenuItem){
            new StockProductManagement();
            this.setVisible(false);
        }
        if(e.getSource()==InventoryMenuItem){
            new InventoryProductManagement();
            this.setVisible(false);
        }
        if(e.getSource()==SalesMenuItem){
            new SalesProductManagement();
            this.setVisible(false);
        }
    }
}