Final Project Membuat Aplikasi Notepad

Membuat Aplikasi Notepad

Pada Final Project ini, saya membuat sebuah program sejenis notepad. Berikut sourcecode program:

	import java.awt.*;
	import java.awt.event.*;
	import javax.swing.*;
	import java.io.*;
	public class notipedi extends JFrame {
	// Komponen
	private JTextArea _editArea;
	private JFileChooser _fileChooser = new JFileChooser();
	// Membuat action pada menu
	private Action _openAction = new OpenAction();
	private Action _saveAction = new SaveAction();
	private Action _exitAction = new ExitAction();
	public static void main(String[] args) {
	new notipedi();
	}
	public notipedi() {
	// Membuat area text yang dapat discroll
	_editArea = new JTextArea(15, 80);
	_editArea.setBorder(BorderFactory.createEmptyBorder(2,2,2,2));
	_editArea.setFont(new Font("monospaced", Font.PLAIN, 14));
	JScrollPane scrollingText = new JScrollPane(_editArea);
	// Membuat panel
	JPanel content = new JPanel();
	content.setLayout(new BorderLayout());
	content.add(scrollingText, BorderLayout.CENTER);
	// Membuat menu
	JMenuBar menuBar = new JMenuBar();
	JMenu fileMenu = menuBar.add(new JMenu("File"));
	fileMenu.setMnemonic('F');
	fileMenu.add(_openAction);
	fileMenu.add(_saveAction);
	fileMenu.addSeparator();
	fileMenu.add(_exitAction);
	// Set menu content dan menu.
	setContentPane(content);
	setJMenuBar(menuBar);
	// Karakeristik window pada umumnya
	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	setTitle("NotiPedi");
	pack();
	setLocationRelativeTo(null);
	setVisible(true);
	}
	class OpenAction extends AbstractAction {
	public OpenAction() {
	super("Open...");
	putValue(MNEMONIC_KEY, new Integer('O'));
	}
	public void actionPerformed(ActionEvent e) {
	int retval = _fileChooser.showOpenDialog(notipedi.this);
	if (retval == JFileChooser.APPROVE_OPTION) {
	File f = _fileChooser.getSelectedFile();
	try {
	FileReader reader = new FileReader(f);
	_editArea.read(reader, "");
	} catch (IOException ioex) {
	System.out.println(e);
	System.exit(1);
	}
	}
	}
	}
	class SaveAction extends AbstractAction {
	SaveAction() {
	super("Save...");
	putValue(MNEMONIC_KEY, new Integer('S'));
	}
	public void actionPerformed(ActionEvent e) {
	int retval = _fileChooser.showSaveDialog(notipedi.this);
	if (retval == JFileChooser.APPROVE_OPTION) {
	File f = _fileChooser.getSelectedFile();
	try {
	FileWriter writer = new FileWriter(f);
	_editArea.write(writer);
	} catch (IOException ioex) {
	JOptionPane.showMessageDialog(notipedi.this, ioex);
	System.exit(1);
	}
	}
	}
	}
	class ExitAction extends AbstractAction {
	public ExitAction() {
	super("Exit");
	putValue(MNEMONIC_KEY, new Integer('X'));
	}
	public void actionPerformed(ActionEvent e) {
	System.exit(0);
	}
	}
	}

view raw notipedi hosted with ❤ by GitHub

Demo:

Link download jar:

https://drive.google.com/file/d/1BV04_KIy4VJNP_4HUzSrLZpGHDg4js02/view?usp=sharing