mainframe.java

点菜系统

package chapter1;
import java.awt.BorderLayout;
import java.awt.event.*;
import javax.swing.*;
public class MainFrame extends JFrame {
	private Inventory inventory = new Inventory();
	private Invoice invoice = new Invoice(inventory);
	final JTextArea textArea_1 = new JTextArea();
	final JTextArea textArea_2 = new JTextArea();//显示存货单信息
	//显示提货单的信息
	
    public static void main(String args[])
{
	MainFrame frame = new MainFrame();
	frame.setBounds(100,100,450,300);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	frame.setVisible(true);
}	
    public MainFrame() {
    	super();
    	setTitle("餐馆就餐系统");
    	final JTabbedPane tabbedPane = new JTabbedPane();
    	final JPanel panel_1 = new JPanel();
    	final JPanel panel_2 = new JPanel();
    	final JScrollPane scrollPane_1=new JScrollPane(textArea_1);
    	final JScrollPane scrollPane_2=new JScrollPane(textArea_2);
    
    	final JTextField id_1=new JTextField(4);  //存货单某项的id
    	
    	final JTextField number_1=new JTextField(4);
    	//欲修改的存货单某项的数量
    	final JTextField id_2=new JTextField(4);
    	//提货单的某项的id
    	final JTextField number_2=new JTextField(4);
    	//欲修改的提货单某项的数量
    	final JPanel panelButton_1=new JPanel();
    	final JPanel panelButton_2=new JPanel();
    	
    	final JPanel panelInput_1=new JPanel();
    	final JPanel panelInput_2=new JPanel();
    	
    	final JButton inventoryAddButton=new JButton();
    	final JButton inventoryRemoveButton=new JButton();
    	final JButton invoiceAddButton=new JButton();
    	final JButton invoiceDeleteButton=new JButton();
    	
    	getContentPane().add(tabbedPane,BorderLayout.CENTER);
    	tabbedPane.add("菜单",panel_1);
    	tabbedPane.add("点菜",panel_2);
    	
    	panel_1.setLayout(new BorderLayout());
    	panel_1.add(scrollPane_1,BorderLayout.CENTER);
    	panel_1.add(panelButton_1,BorderLayout.SOUTH);
    	panel_1.add(panelInput_1,BorderLayout.NORTH);
    	
        
    	panelInput_1.add(new JLabel("菜名:"));
    	panelInput_1.add(id_1);
    	panelInput_1.add(new JLabel("价格:"));
    	panelInput_1.add(number_1);
    	panelButton_1.add(inventoryAddButton);
    	inventoryAddButton.setText("添加");
    	panelButton_1.add(inventoryRemoveButton);
    	inventoryRemoveButton.setText("删除");
    	textArea_1.setEditable(false);
    	scrollPane_1.setViewportView(textArea_1);
    	
    	panel_2.setLayout(new BorderLayout());
    	panel_2.add(scrollPane_2,BorderLayout.CENTER);
    	panel_2.add(panelButton_2,BorderLayout.SOUTH);
    	panel_2.add(panelInput_2,BorderLayout.NORTH);
    	
    	panelInput_2.add(new JLabel("菜名:"));
    	panelInput_2.add(id_2);
    	panelInput_2.add(new JLabel("数量："));
    	panelInput_2.add(number_2);
    	panelInput_2.add(invoiceAddButton);
    	invoiceAddButton.setText("增加提货单");
    	panelButton_2.add(invoiceDeleteButton);
    	invoiceDeleteButton.setText("删除提货单");
    	textArea_2.setEditable(false);
    	scrollPane_2.setViewportView(textArea_2);
    	
      refreshInventory();
    	refreshInvoice();
    	inventoryAddButton.addActionListener(new ActionListener(){
    		public void actionPerformed(ActionEvent e)
    		{
    			try{
    				inventory.addUnits(id_1.getText(),Integer.
    				parseInt(number_1.getText()));
    			}catch (NumberFormatException e1){
    				JOptionPane.showMessageDialog(null,"输入的商品数量错误！"
    				,"警告",JOptionPane.ERROR_MESSAGE);
    			}
    			refreshInventory();
    		}
    	});
    	
    	inventoryRemoveButton.addActionListener(new ActionListener(){
    		public void actionPerformed(ActionEvent e){
    			try {
    				inventory.removeUnits(id_1.getText(),Integer.parseInt(number_1.getText()));
    			}catch (NumberFormatException e1){
    				JOptionPane.showMessageDialog(null,"输入的商品数量错误！"
    				,"警告",JOptionPane.ERROR_MESSAGE);
    			}
    			refreshInventory();
    		}
    	});
    	
    	
    	invoiceAddButton.addActionListener(new ActionListener(){
    		public void actionPerformed(ActionEvent e){
    			try{
    				invoice.addItem(id_2.getText(),Integer.parseInt(number_2.getText()));
    			} catch (NumberFormatException e1){
    				JOptionPane.showMessageDialog(null,"输入的商品数量错误！"
    				,"警告",JOptionPane.ERROR_MESSAGE);
    			}
    			refreshInvoice();
    			refreshInventory();
    		}
    	});
    	
    	
    	invoiceDeleteButton.addActionListener(new ActionListener(){
    		public void actionPerformed(ActionEvent e){
    			invoice.delItem(id_2.getText());
    			refreshInvoice();
    		}
    	});
    }


//刷新存货单的显示结果
public void refreshInventory(){
	String str=null;
	for (int i=0;i<inventory.list.length;i++){
		str=inventory.toString()+"\n";
	}
	textArea_1.setText(str);
}

//刷新提货单的显示结果
public void refreshInvoice(){
	String str=null;
	for (int i=0;i<invoice.list.length;i++){
		str=invoice.toString()+"\n";
	}
	textArea_2.setText(str);
}
}