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import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.SimpleDateFormat;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
public class NoticeBoard extends JFrame {
private JList<String> TitleList = new JList<String>();
private JList<String> DateList = new JList<String>();
private DefaultListModel<String> TitleModel = new DefaultListModel<String>();
private DefaultListModel<String> DateModel = new DefaultListModel<String>();;
private Vector<JTextField> v1 = new Vector<JTextField>();
private Vector<JTextArea> v2 = new Vector<JTextArea>();
private int index;
public NoticeBoard() {
this.setTitle("Java Notice-Board");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(getOwner());
InitialScreen is = new InitialScreen();
setContentPane(is);
this.setResizable(false);
this.setSize(500, 500);
this.setVisible(true);
}
private class InitialScreen extends JPanel {
private JButton WriteBtn, DeleteBtn, ModifyBtn;
public InitialScreen() {
this.setSize(500, 500);
this.setLayout(null);
this.setBackground(new Color(153, 204, 255));
JLabel label = new JLabel("Notice-Board");
label.setBounds(20, 20, 450, 50);
label.setFont(new Font("Arial", Font.PLAIN, 20));
label.setForeground(new Color(000, 000, 102));
label.setHorizontalAlignment(JLabel.CENTER);
add(label);
TitleList.setBounds(20, 70, 300, 345);
DateList.setBounds(320, 70, 150, 345);
DateList.setEnabled(false);
add(TitleList); add(DateList);
WriteBtn = new JButton("Writing");
WriteBtn.setBounds(240, 430, 75, 25);
ModifyBtn = new JButton("Modify");
ModifyBtn.setBounds(320, 430, 75, 25);
DeleteBtn = new JButton("Delete");
DeleteBtn.setBounds(400, 430, 70, 25);
add(WriteBtn); add(ModifyBtn); add(DeleteBtn);
WriteBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(v1.size() == 17) {
JOptionPane.showMessageDialog(null, "더 이상 글을 쓸 수 없습니다.", "Message",JOptionPane.INFORMATION_MESSAGE);
return;
}
Screen s = new Screen("New Writing");
setContentPane(s);
}
});
ModifyBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(TitleList.isSelectionEmpty() == false) {
index = TitleList.getSelectedIndex();
Screen s = new Screen("Modify");
setContentPane(s);
}
}
});
DeleteBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(TitleList.isSelectionEmpty() == false) {
int choice = JOptionPane.showConfirmDialog(null, "정말로 삭제하시겠습니까?", "Delete", JOptionPane.OK_CANCEL_OPTION);
if(choice == JOptionPane.YES_OPTION) {
v1.remove(TitleList.getSelectedIndex());
v2.remove(TitleList.getSelectedIndex());
DateModel.remove(TitleList.getSelectedIndex());
DateList.setModel(DateModel);
TitleModel.remove(TitleList.getSelectedIndex());
TitleList.setModel(TitleModel);
}
else {
return;
}
}
}
});
}
}
private class Screen extends JPanel {
private JLabel label;
private JTextField Title;
private JTextArea Contents;
private JButton Save;
private time t = new time();
private Error err = new Error();
public Screen(String str) {
this.setSize(500, 500);
this.setLayout(null);
this.setBackground(new Color(153, 204, 255));
label = new JLabel(str);
label.setBounds(20, 5, 450, 30);
label.setForeground(new Color(000, 000, 102));
label.setHorizontalAlignment(JLabel.CENTER);
Title = new JTextField();
Title.setBounds(20, 40, 450, 30);
Title.setDocument(new JTextFieldLimit());
Contents = new JTextArea();
Contents.setBounds(20, 75, 450, 350);
Contents.setLineWrap(true);
JScrollPane sp = new JScrollPane(Contents);
sp.setBounds(20, 75, 450, 350);
Save = new JButton("Save");
Save.setBounds(this.getWidth()/2 + 140, 435, 80, 20);
add(label); add(Title); add(sp); add(Save);
if(label.getText().equals("New Writing")) {
Save.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(Title.getText().length() == 0 || Contents.getText().length() == 0) {
err.errorMessage();
return;
}
String format_time = t.FormatTime();
TitleModel.addElement(Title.getText());
TitleList.setModel(TitleModel);
DateModel.addElement(format_time);
DateList.setModel(DateModel);
v1.add(Title);
v2.add(Contents);
InitialScreen is = new InitialScreen();
setContentPane(is);
}
});
}
if(label.getText().equals("Modify")) {
Title.setText(v1.get(index).getText());
Contents.setText(v2.get(index).getText());
Save.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(Title.getText().length() == 0 || Contents.getText().length() == 0) {
err.errorMessage();
return;
}
else {
String format_time = t.FormatTime();
TitleModel.set(index, Title.getText());
TitleList.setModel(TitleModel);
DateModel.set(index, format_time);
DateList.setModel(DateModel);
v1.set(index, Title);
v2.set(index, Contents);
InitialScreen is = new InitialScreen();
setContentPane(is);
}
}
});
}
}
private class Error {
public void errorMessage() {
JOptionPane.showMessageDialog(null, "제목과 내용을 입력하십시오", "Message", JOptionPane.ERROR_MESSAGE);
}
}
private class time {
public String FormatTime() {
SimpleDateFormat format = new SimpleDateFormat ("yyyy-MM-dd HH:mm:ss");
Calendar time = Calendar.getInstance();
String format_time = format.format(time.getTime());
return format_time;
}
}
}
private class JTextFieldLimit extends PlainDocument {
private int limit = 36;
public void insertString(int offset, String str, javax.swing.text.AttributeSet attr) throws BadLocationException {
if(str == null) return;
if(getLength() + str.length() <= limit) {
super.insertString(offset, str, attr);
}
}
}
public static void main(String[] args) {
new NoticeBoard();
}
}
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cs |
