jiudian.java

酒店点菜界面（简单的）java版 应该会有些或多或少的帮助

import java.sql.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
/////////////////////////////
public  class jiudian implements ActionListener,ItemListener
{
	static JFrame f=null; 
    //因为要在main静态方法中被引用，所以必须设为static类型
  ButtonGroup bg;      //按钮组，可组合若干单选按钮
  JRadioButton r1,r2,r3,r4,r5;  //单选按钮
  JRadioButton c1,c2,c3,c4;  //单选按钮
  int op=0;
  static int i=0;  
  public jiudian()
  {   // Dialog = new JDialog(f,"选择您想要的桌号和您喜欢的菜",true);
  	 f=new JFrame("选择您想要的桌号和您喜欢的菜");
				Container dialogPane=f.getContentPane();
   dialogPane.setLayout(new GridLayout(3,1));
    JPanel p1=new JPanel();            //新建一个Panel
    p1.setLayout(new GridLayout(1,5));
    //设置边框
    p1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(
           Color.green,4),"选择桌号",TitledBorder.CENTER,TitledBorder.TOP));
    //单选按钮
    r1=new JRadioButton("one");        
    r2=new JRadioButton("two");
    r3=new JRadioButton("three");
    r4=new JRadioButton("four");
    r5=new JRadioButton("five"); 
    p1.add(r1);
    p1.add(r2);
    p1.add(r3);
    p1.add(r4); 
    p1.add(r5);         
    bg=new ButtonGroup();       //按钮组，组合5个单选按钮，使一次只能选择一个
    bg.add(r1);
    bg.add(r2);
    bg.add(r3);
    bg.add(r4);
    bg.add(r5);
    r1.addItemListener(this);  //为单选按钮增加ItemListener事件监听器
    r2.addItemListener(this);
    r3.addItemListener(this);
    r4.addItemListener(this);
    r5.addItemListener(this);
    
    
    JPanel p2=new JPanel();            //新建一个Pane1
    p2.setLayout(new GridLayout(4,1));
    //设置边框
    p2.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(
           Color.green,4),"选择您喜欢的菜",TitledBorder.CENTER,TitledBorder.TOP));
    //单选按钮
    c1=new JRadioButton("  小鸡炖蘑菇，价格为：25元/份");        
    c2=new JRadioButton("   青椒炒肉， 价格为：18元/份");
    c3=new JRadioButton("   东北火锅， 价格为：36元/份");
    c4=new JRadioButton("  豆腐炖鱼头，价格为：36元/份"); 
    p2.add(c1);
    p2.add(c2);
    p2.add(c3);
    p2.add(c4);            
    c1.addItemListener(this);  //为单选按钮增加ItemListener事件监听器
    c2.addItemListener(this);
    c3.addItemListener(this);
    c4.addItemListener(this);
         

    JPanel p3=new JPanel();  //创建一个新的Panel
    p3.setLayout (new GridLayout(1,3));
    JButton button1=new JButton("确 定");
    JButton button2=new JButton("结 帐");
    JButton button3=new JButton("取 消");
    p3.add(button1);
    p3.add(button2);
    p3.add(button3);
    button1.addActionListener (this);   
    button2.addActionListener (this);  
    button3.addActionListener (this);    
    //将三个Panel加在内容面板上
    dialogPane.add(p1,BorderLayout.NORTH);
    dialogPane.add(p2,BorderLayout.CENTER);        
    dialogPane.add(p3,BorderLayout.SOUTH); 

    f.getRootPane ().setDefaultButton (button1); //设置窗体回车对应按钮
   f.pack(); //排版
   f.setBounds(250,250,400,400);
   //f.setVisible (true); 
   f.addWindowListener(new WindowAdapter() {
       public void windowClosing(WindowEvent evt) {
                System.exit(0);
       }
    });
  }
    
  public void itemStateChanged(ItemEvent e)  //单选钮被点击时触发
  {
    if(e.getSource()==r1) op=1;
    if(e.getSource()==r2) op=2;
    if(e.getSource()==r3) op=3;
    if(e.getSource()==r4) op=4;
    if(e.getSource()==r5) op=5;
    if(e.getSource()==c1) i=1;
    if(e.getSource()==c2) i=2;
    if(e.getSource()==c3) i=3;
    if(e.getSource()==c4) i=4;     
  }   	  
    	      
  public void actionPerformed(ActionEvent e)  //单选按钮被点击时触发
  {   String cmd = e.getActionCommand();  
    if (cmd.equals("确 定"))
    {    	
  	  try{
					Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
					Connection con=DriverManager.getConnection("jdbc:odbc:jiudian","test","1234");				 
				 Statement stmt=con.createStatement();
         int m=0,val=0;String str=null;String SQLOrder;        
          switch (op)
          {    	
          case 1:{
              switch(i)
                 {  
                 case 1:
                
                 m=1;val=25;str="小鸡炖蘑菇";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                //break;
             
            case 2:
                 m=1;val=18;str="青椒炒肉";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                //break;
            case 3:
                 m=1;val=36;str="东北火锅";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 //break;
            case 4:
                 m=1;val=36;str="豆腐炖鱼头";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                //break;
            }
            break;}
        case 2:
          switch(i)
          {  
            case 1:
                 m=2;val=25;str="小鸡炖蘑菇";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
             
            case 2:
                 m=2;val=18;str="青椒炒肉";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 3:
                 m=2;val=36;str="东北火锅";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 4:
                 m=2;val=36;str="豆腐炖鱼头";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
           }
            break;
        case 3:
          switch(i)
          {  
            case 1:
                 m=3;val=25;str="小鸡炖蘑菇";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
             
            case 2:
                 m=3;val=18;str="青椒炒肉";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 3:
                 m=3;val=36;str="东北火锅";
                 SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 4:
                 m=3;val=36;str="豆腐炖鱼头";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
            }
             break;
        case 4:
          switch(i)
          {  
            case 1:
                 m=4;val=25;str="小鸡炖蘑菇";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
             
            case 2:
                 m=4;val=18;str="青椒炒肉";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 3:
                 m=4;val=36;str="东北火锅";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
            case 4:
                 m=4;val=36;str="豆腐炖鱼头";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
           }
            break;
        case 5:{
              switch(i)
                 {  
                 case 1:
                
                 m=5;val=25;str="小鸡炖蘑菇";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
             
                case 2:
                 m=5;val=18;str="青椒炒肉";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
                case 3:
                 m=5;val=36;str="东北火锅";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                 break;
               case 4:
                 m=5;val=36;str="豆腐炖鱼头";
                  SQLOrder="Insert Into jiudian Values ("+m+",'"+str+"',"+val+")";
								 stmt.executeUpdate(SQLOrder);
                break;
            }
            break;}
         }
    }catch(Exception em){}
  }
   
  if(cmd.equals("结 帐")) {new jiezhang(f);
  	}
  if(cmd.equals("取 消")){f.dispose();}
 }
 	public static void main(String args[])throws Exception
  {
      new jiudian(); 
      new jiudian1(f);            
  }    
}     
////////////////////////////////////////////////////////////
 class jiudian1 implements ActionListener {
		JFrame f; //类属性
		    JDialog Dialog;  
		public jiudian1(JFrame f)              //构造方法
		{  Dialog=new JDialog();  //新建一对话框 
		  Dialog.setTitle ("酒店管理系统");  //设置标题            
			//f=new JFrame("酒店管理系统"); //创建一个顶层容器
			Container contentPane=Dialog.getContentPane(); //获得其内容面板
			JPanel buttonPanel = new JPanel(); //创建一中间容器JPanel
			JButton b=new JButton("进入系统");//创建一原子组件——按钮
			b.addActionListener(this);//为按钮添加事件监听器对象
			buttonPanel.add(b);	//将此按钮添加到中间容器 
		  b=new JButton("退出系统"); //再创建一按钮
			b.addActionListener(this);//为按钮增加事件监听器
			buttonPanel.add(b);//将按钮添加到中间容器
			
			buttonPanel.setBorder(BorderFactory.createTitledBorder(
			BorderFactory.createLineBorder(Color.green,2),"欢迎光临",
			TitledBorder.CENTER,TitledBorder.TOP));
			contentPane.add(buttonPanel,BorderLayout.CENTER);//将中间容器添加到内容面板
			Dialog.setBounds(250,250,200,200);
			Dialog.setVisible (true);
      this.f=f;
     
  }
   public void actionPerformed(ActionEvent e)
      {
        String cmd = e.getActionCommand();
         if (cmd.equals("进入系统"))
             { //Dialog.dispose();
             	 f.setVisible (true); } //显示主窗体
         if(cmd.equals("退出系统"))  System.exit(0);
     }
}

/////////////////////////
class jiezhang implements ActionListener{
      JDialog Dialog;
      JLabel L1,L2,L3,L4,L5;
			JTextField F1=new JTextField();
			jiezhang(JFrame f){
				Dialog = new JDialog(f,"结账",true);
				Container dialogPane=Dialog.getContentPane();
				dialogPane.setLayout(new GridLayout(4,2));
			  L1=new JLabel("请输入您的桌号",SwingConstants.CENTER);
			  L2=new JLabel("您总共消费了：",SwingConstants.CENTER);
			  L4=new JLabel("您总共点了：",SwingConstants.CENTER);
			  L3=new JLabel("",SwingConstants.CENTER);
			  L5=new JLabel("",SwingConstants.CENTER);
			  dialogPane.add(L1);
			  dialogPane.add(F1);
			  dialogPane.add(L2);
			  dialogPane.add(L3);
			  dialogPane.add(L4);
			  dialogPane.add(L5);
			  JButton b1=new JButton("确定");
				dialogPane.add(b1);
				JButton b2=new JButton("取消");
				dialogPane.add(b2);
				b1.addActionListener(this);
				b2.addActionListener(this);
				Dialog.setBounds(400,400,300,300);
				Dialog.show();
			}
			public void actionPerformed(ActionEvent e){
					String cmd=e.getActionCommand();
					if(cmd.equals("确定")){						
						try{
								Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
					Connection con=DriverManager.getConnection("jdbc:odbc:jiudian","test","1234");			 
				 Statement stmt=con.createStatement();
				 int sa=Integer.parseInt(F1.getText());				
  	     ResultSet rs=stmt.executeQuery("select sum(values) from jiudian where id="+sa+"");  	    
  	     while(rs.next()){
         L3.setText(""+rs.getInt(1)+"元");
  	          }   
  	       ResultSet rr=stmt.executeQuery("select * from jiudian");
								int j=0;
								while(rr.next()) j=j+1;
								L5.setText(""+j+" 份菜");      
							stmt.executeUpdate("delete from jiudian where id="+sa+"");
							JOptionPane.showMessageDialog (Dialog,"谢谢惠顾！","",JOptionPane.WARNING_MESSAGE);
								F1.setText("");														
								stmt.close();
								con.close();
							}catch(Exception em){}  
					}	
		if(cmd.equals("取消")){Dialog.dispose();}
	}

}