Copenhagen Club.

1. JFrame frame = new JFrame();

2. frame.getContentPane().add(button);
다른 대부분의 구성요소와 달리 JFrame에는 다른 위젯을 직접 추가할 수 없다

3. frame.setSize(300,300); frame.setVisible(true);

4. button.addActionListener(this);

5. public void actionPerformed(ActionEvent event){
   button.setText("button clicked!!");
}

JTextField f = new JTextField(20);

JTextArea text = new JTextArea(10,20);

JScrollPane scroller  = JScrollPane(text);
text.setLineWrap(true);

scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);

panel.add(scroller);

text.setText("Not at all");

text.selectAll();

text.requestFocus();

JCheckBox check = new JCheckBox("Goes to 11");

FileOutputStream fs = new FileOutputStream("MyGame.ser");//파일연결법을 알고 있습니다

ObejctOutputStream os = new ObjectOutputStream(fileStream); //stream chain //객체저장법을 압니다

os.writeObject(characterOne);
os.wrteObject(characterTwo);
os.writeObejct(characterThree);

os.close();

FileInputStram fileStream = new FileInputStream("MyGame.ser"); //file지정

ObjectImputStream os  = new ObjectInputStream(fileStream);//get Object

Object one = os.readObject();
Object two = os.readObject();
Object three = os.readObject();

GameCharactor elf = (GameCharactor) one;
GameCharactor troll = (GameCharactor) two;
GameCharactor magician = (GameCharactor) three;

os.close();