?14? GUI?????????????

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?14? GUI?????????????

• GUI?????????(?)

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????

• ?????????????????????????
• Swing????????GUI?????????
• ??????????????????
• ??????????????????
• Model?View????????????????

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GUI????????

• ???????Graphical User Interface??????

????
????
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14.1 SwingAPI???

• 14.1.1 Swing??
• 14.1.2 Swing???????

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14.1.1 Swing??

• Java?GUI????????????API
• GUI??????????
• GUI????????????????Swing????????
• ?????????
• ?????????????

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Swing??

• ??????????
• ????????????

JFrame
JLabel
JTextField
JButton
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14.1.2 Swing???????
??14-1 (Example14_1.java)

• ?????????

import javax.swing.//swing???????????????? impor
t java.awt.//swing???????????????? //??????????
public class Example14_1 //?????????
//????????? public static void main(String
args) JFrame frame new
JFrame()//Swing??????JFrame????????
frame.setTitle("?????????")//??????
frame.setSize(200,200)//?????
frame.setLocation(50,50)//????
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE
)//????????????
???????????????
frame.setVisible(true)//????
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????
?????????????? ????????!
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?????????????

• ?????????????
• JFrame????????????????????

????() ???()??
Swing ?????
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ButtonFrame????
??14-2 (ButtonFrame.java)
import javax.swing.//swing???????????????? impor
t java.awt.//swing???????????????? //JFrame????
????????????(?????)??? //????????????? public
class ButtonFrame extends JFrame //???????
public ButtonFrame() getContentPane().setLay
out(null)//????????????????????????
???????????????
//???????? JButton button new
JButton()//??????????? button.setText("??????
?")//?????????? button.setSize(150,20)//????
????? button.setLocation(20,50)//????????(???
?????????) //?????????????
getContentPane().add(button)
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ButtonFrame?????Main
??14-2 (Example14_2.java)
//????????????? //????????(?????)??? public class
Example14_2 //????????? //?????????
public static void main(String args)
JFrame frame new ButtonFrame()//???????????????
? frame.setTitle("?????????")//??????
frame.setSize(200,200)//?????
frame.setLocation(50,50)//????
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE
)//????????????
???????????????
frame.setVisible(true)//????
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????
???????????? ?????????????????
???????????????????? ????????????!
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14.2????????????????

• 14.2.1 ????????????????
• 14.2.2 Java???????????????????

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14.2.1 ????????????????

• ???????
• ?????
• ????????????????????

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?????????????
?????
?????
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???????????????

• ??????????????????

//Java???????? public void ???????????????????????
?????() ??????????() if(???????Button?????)
??????????() if(??????????)
if(????????????????????) ??????????

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?????????

• ??????

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?????????

• ?????(CPU???????)
• ??????????????????????
• ????????????????????????????????????
• ??????????
• ???????????????????
• ??????????????

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?????????????????

• ?????????
• ????????????????????????????
• ?????????????????? ???????????, ?????

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????????????
??????? ???????? ????????
?????
?????
????????
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????????????
????????
????
????????????
??????? ???????? ????????
?????!
?????
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???????????????

• ?????????????????????????????????????????????????

public void ?????????????() System.exit(0)
?????????????????
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14.2.2 Java???????????????????

• ?Java????????????
• ????????????
• ????????????
• Java?????
• ????????
• ????????????????????

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?Java????????????

• Java?Swing?????????????????????
• Java??????????????EventListener???????????????
• Java??????????????????(EventObject)

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Java????????????(2)
????????
????
????????????
Swing???
EventObject
??????? ???????? ????????
EventListener
?????
?????
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????????????
??14-3 (ExitButtonListener.java)
import java.awt.event.//event???????????????? /
/?????????????????? ??? public class
ExitButtonListener implements ActionListener
//??????????????????? public void
actionPerformed(ActionEvent e)
System.exit(0)//??????????
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????????????
//JFrame????????????????(?????)??? public class
ButtonFrame extends JFrame //??????? public
ButtonFrame() getContentPane().setLayout(nul
l) //???????? JButton button new
JButton() button.setText("???????")
button.setSize(150,20) button.setLocation(20,
50) //????????????? ExitButtonListener
listener new ExitButtonListener()//????????????
???? button.addActionListener(listener)//????
??????????????? //?????????????
getContentPane().add(button)
??14-3 (ButtonFrame.java)
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?????????!

• ?????????????????????????

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(Java?????)????????
//JFrame????????????????(?????)??? public class
ButtonFrame extends JFrame //??????? public
ButtonFrame() //???????? //????
//????????????? ExitButtonListener listener
new ExitButtonListener()//????????????????
button.addActionListener(listener)//?????????????
?????? //?????????????
getContentPane().add(button)
//?????????????????? ??????? class
ExitButtonListener implements ActionListener
//??????????????????? public void
actionPerformed(ActionEvent e)
System.exit(0)//??????????
??14-4 (ButtonFrame.java)
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???????

• ??????????????????
• Java???????
• ????????????????????

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????????????????????

• ????????????????????????????????

????????
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???????????????????????
//JFrame????????????????(?????)??? public class
ButtonFrame extends JFrame private JTextField
textField new JTextField()//?????????
//??????? public ButtonFrame()
//????????(??) //?????????????(??)
//?????????????(??) //??????????????
textField.setText("????????????")
textField.setBounds(20,100,150,20)//????????(x,y,
width,height) getContentPane().add(textField)/
/??????????????????? //??????????????????
??????? public class TextFieldChangeButtonListen
er implements ActionListener
//??????????????????? public void
actionPerformed(ActionEvent e)
textField.setText("??????????")
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??????????

• ???????????????????????
• ???????????????????????????????????????
• ??????????????????????

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14.3 GUI????????

• 14.3.1 GUI???????
• 14.3.2 Model?View???
• 14.3.3 GUI????????????

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14.3.1 GUI???????

• ??????????????????
• ????
• ?????????(AdminFrame???)
• CUI?CUIAdminApp?????????
• ?????????(UserFrame???)
• CUI?CUIUserApp?????????

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????
????????
????????
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14.3.2 Model?View???

• ?CUI?????????
• ?Model?View???
• ????Model????
• ?display()???????

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?CUI?????????

• CUI???????????????????????????

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GUI????????

• GUI?????????????

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?Model?View???

• ??????????????????????

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Model?View

• ????????
• ????????????????????????Model
• ?????????
• ?????????View
• (??????????????????)

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Model?View???

• Model?View?????????????????????????
• ??????????GUI?????????

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????Model????

• ItemTypeList????display()??????CUI????????????

??11-1 (ItemTypeList.java) display()
//????????? public void display()
for(int i0iltsizei) //???????
System.out.println(itemTypeArrayi.getId()""it
emTypeArrayi.getName()""

itemTypeArrayi.getPrice()"?")
?ItemStock??????
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display()????

• CUI?GUI???????????
• ???display()??????GUI???????
• Model???????????

1001cola120? 1002soda120?
CUI??????
GUI??????
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?display()???????

• ??????View?????????display()?????????
• ????CUI?GUI????????????????????????
• int size()
• ????????
• ItemType get(int index)
• index????????????

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display()?View????
??11-2 (CUIAdminApp.java) showItemTypeList()
//???????????? public void showItemTypeList()
itemTypeList.display()
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Model-View??

• Model?View????????????????
• ????????????
• ?????(CUI,GUI)?????Model?????????
• ??????????

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14.3.3GUI????????????

• ??????????????
• ?GUI????????
• ?UserFrame??
• ?100???????????

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??????????????(1)

• ???????

BackgroundPanel??? ?????????????? ????????????????
???? ????????
ItemImagePanel??? ???????????? ??????????
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??????????????(2)
BuyButton??? ???????
ProductOutlet??? ?????????
CoinDeposit??? ??????????
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?GUI????????
??14-6 (Example14_6.java)
//GUI???????????????????? public class
Example14_6 / ?????????
???????2???????(???????,???????) ????????
/ public static void main(String args)
ItemTypeList itemTypeList new ItemTypeList()
//?????????? Account account new Account()
//????????
//???????????????? AdminFrame adminFrame
new AdminFrame(itemTypeList,account)//??
adminFrame.setVisible(true)//??
//???????????????? UserFrame userFrame new
UserFrame(itemTypeList,account)//??
userFrame.setVisible(true)//??
itemTypeList? Account????? 2?????????????
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?UserFrame??
??14-6 (UserFeame.java)

• ???????
• ??????????????????????????
• ??????(3??)
• Model?????????????????????
• ?????????
• ?????????????????????

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?100???????????

• 100???????????

?????????
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100???????????
??14-7 (UserFeame.java)
//???????(????????????)??? //??????????????? publi
c class UserFrame extends JFrame public
JButton button100 new JButton()//100????
//??????? public UserFrame(ItemTypeList
newItemTypeList,Account newAccount)
//100???????? button100.setText("100?")
button100.setBounds(new Rectangle(385, 240, 79,
27)) button100.addActionListener(new
Button100_ActionListener())
background.add(button100, null)
//100??????????????? class Button100_ActionListe
ner implements java.awt.event.ActionListener
public void actionPerformed(ActionEvent e)
account.insert(new Money(100))//100?????
stateUpdate()//???????
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???????????

• ???????????
• CUI???
• stateUpdate()???
• ????????stateUpdate()????????????

//100??????????????? class Button100_ActionLis
tener implements java.awt.event.ActionListener
public void actionPerformed(ActionEvent e)
account.insert(new Money(100))//100?????
stateUpdate()//???????
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?????

• ??14-3????????????????????

//???????(????????????)??? //??????????????????? p
ublic class ShoppingFrame extends JFrame
//?????????????? //????????????????????????????
public void buyButton_pressed(BuyButton
buyButton,ItemType itemType)
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??????????????

• ????????(????)??CUI???????????
• ?????????????????

//?????????????? //???????????????????????????
? public void buyButton_pressed(BuyButton
buyButton,ItemType itemType) //???????????
//???????? //?????????????????????
//???? //????????????
productOutlet.addItem(item) //????????
//?????? System.out.println("???????")
//?????? //????????????
stateUpdate()//???????