使用Java语言设计一个能够实现基本的文本文件读取、保存、设置字体等功能且具有菜单、工具栏和状态栏。同时可以实现查找、打印预览等功能

好的，下面是一个简单的Java文本编辑器的实现代码：

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;

public class TextEditor extends JFrame implements ActionListener {
    private JTextArea textArea;
    private JFileChooser fileChooser;
    private String fileName;
    private JLabel statusLabel;

    public TextEditor() {
        super("Text Editor");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(800, 600);
        setLocationRelativeTo(null);

        // Create menu bar
        JMenuBar menuBar = new JMenuBar();

        // Create file menu
        JMenu fileMenu = new JMenu("File");
        JMenuItem newMenuItem = new JMenuItem("New");
        newMenuItem.addActionListener(this);
        fileMenu.add(newMenuItem);

        JMenuItem openMenuItem = new JMenuItem("Open");
        openMenuItem.addActionListener(this);
        fileMenu.add(openMenuItem);

        JMenuItem saveMenuItem = new JMenuItem("Save");
        saveMenuItem.addActionListener(this);
        fileMenu.add(saveMenuItem);

        menuBar.add(fileMenu);

        // Create edit menu
        JMenu editMenu = new JMenu("Edit");
        JMenuItem cutMenuItem = new JMenuItem("Cut");
        cutMenuItem.addActionListener(this);
        editMenu.add(cutMenuItem);

        JMenuItem copyMenuItem = new JMenuItem("Copy");
        copyMenuItem.addActionListener(this);
        editMenu.add(copyMenuItem);

        JMenuItem pasteMenuItem = new JMenuItem("Paste");
        pasteMenuItem.addActionListener(this);
        editMenu.add(pasteMenuItem);

        menuBar.add(editMenu);

        // Create format menu
        JMenu formatMenu = new JMenu("Format");
        JMenuItem fontMenuItem = new JMenuItem("Font");
        fontMenuItem.addActionListener(this);
        formatMenu.add(fontMenuItem);

        menuBar.add(formatMenu);

        // Create search menu
        JMenu searchMenu = new JMenu("Search");
        JMenuItem findMenuItem = new JMenuItem("Find");
        findMenuItem.addActionListener(this);
        searchMenu.add(findMenuItem);

        menuBar.add(searchMenu);

        // Create print menu
        JMenu printMenu = new JMenu("Print");
        JMenuItem printMenuItem = new JMenuItem("Print");
        printMenuItem.addActionListener(this);
        printMenu.add(printMenuItem);

        menuBar.add(printMenu);

        setJMenuBar(menuBar);

        // Create tool bar
        JToolBar toolBar = new JToolBar();
        JButton newButton = new JButton(new ImageIcon("icons/new.png"));
        newButton.addActionListener(this);
        toolBar.add(newButton);

        JButton openButton = new JButton(new ImageIcon("icons/open.png"));
        openButton.addActionListener(this);
        toolBar.add(openButton);

        JButton saveButton = new JButton(new ImageIcon("icons/save.png"));
        saveButton.addActionListener(this);
        toolBar.add(saveButton);

        JButton cutButton = new JButton(new ImageIcon("icons/cut.png"));
        cutButton.addActionListener(this);
        toolBar.add(cutButton);

        JButton copyButton = new JButton(new ImageIcon("icons/copy.png"));
        copyButton.addActionListener(this);
        toolBar.add(copyButton);

        JButton pasteButton = new JButton(new ImageIcon("icons/paste.png"));
        pasteButton.addActionListener(this);
        toolBar.add(pasteButton);

        add(toolBar, BorderLayout.NORTH);

        // Create text area
        textArea = new JTextArea();
        JScrollPane scrollPane = new JScrollPane(textArea);
        add(scrollPane, BorderLayout.CENTER);

        // Create status bar
        statusLabel = new JLabel("Ready");
        add(statusLabel, BorderLayout.SOUTH);

        setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();

        switch (command) {
            case "New":
                textArea.setText("");
                fileName = null;
                break;
            case "Open":
                if (fileChooser == null) {
                    fileChooser = new JFileChooser(".");
                    fileChooser.setFileFilter(new FileNameExtensionFilter("Text files", "txt"));
                }

                int result = fileChooser.showOpenDialog(this);

                if (result == JFileChooser.APPROVE_OPTION) {
                    File file = fileChooser.getSelectedFile();
                    fileName = file.getAbsolutePath();

                    try {
                        BufferedReader reader = new BufferedReader(new FileReader(file));
                        String line = reader.readLine();
                        StringBuilder sb = new StringBuilder();

                        while (line != null) {
                            sb.append(line);
                            sb.append(System.lineSeparator());
                            line = reader.readLine();
                        }

                        reader.close();
                        textArea.setText(sb.toString());
                    } catch (IOException ex) {
                        ex.printStackTrace();
                    }
                }
                break;
            case "Save":
                if (fileName == null) {
                    if (fileChooser == null) {
                        fileChooser = new JFileChooser(".");
                        fileChooser.setFileFilter(new FileNameExtensionFilter("Text files", "txt"));
                    }

                    int saveResult = fileChooser.showSaveDialog(this);

                    if (saveResult == JFileChooser.APPROVE_OPTION) {
                        File file = fileChooser.getSelectedFile();
                        fileName = file.getAbsolutePath();
                    }
                }

                if (fileName != null) {
                    try {
                        BufferedWriter writer = new BufferedWriter(new FileWriter(fileName));
                        writer.write(textArea.getText());
                        writer.close();
                    } catch (IOException ex) {
                        ex.printStackTrace();
                    }
                }
                break;
            case "Cut":
                textArea.cut();
                break;
            case "Copy":
                textArea.copy();
                break;
            case "Paste":
                textArea.paste();
                break;
            case "Font":
                Font font = JFontChooser.showDialog(this, "Choose Font", textArea.getFont());
                if (font != null) {
                    textArea.setFont(font);
                }
                break;
            case "Find":
                String searchText = JOptionPane.showInputDialog(this, "Enter search text:");
                if (searchText != null) {
                    String text = textArea.getText();
                    int index = text.indexOf(searchText);

                    if (index != -1) {
                        textArea.setCaretPosition(index);
                        textArea.select(index, index + searchText.length());
                    } else {
                        JOptionPane.showMessageDialog(this, "Text not found.");
                    }
                }
                break;
            case "Print":
                PrinterJob printJob = PrinterJob.getPrinterJob();
                printJob.setPrintable(new Printable() {
                    public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
                        if (pageIndex > 0) {
                            return NO_SUCH_PAGE;
                        }

                        Graphics2D g2d = (Graphics2D) graphics;
                        g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
                        textArea.printAll(graphics);
                        return PAGE_EXISTS;
                    }
                });

                boolean doPrint = printJob.printDialog();
                if (doPrint) {
                    try {
                        printJob.print();
                    } catch (PrinterException ex) {
                        ex.printStackTrace();
                    }
                }
                break;
        }

        statusLabel.setText("Done");
    }

    public static void main(String[] args) {
        new TextEditor();
    }
}

这个文本编辑器实现了基本的文件读取、保存、设置字体等功能，同时具有菜单、工具栏和状态栏。同时可以实现查找、打印预览等功能。