用Java代码编写一个程序实现一下功能 1）从已有的图象文件列表中选择某一个，即可显示该图象，并可做旋转等变换。 2）在画布区域上可以进行各种规则图形的绘制（如：线段、矩形、多边形、圆等），还可通过鼠标的拖动自由绘图。 3）可以连续播放所选文件夹下的所有图象。

好的，以下是Java代码实现上述功能的示例：

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.*;

public class ImageEditor extends JFrame implements ActionListener {
    private static final long serialVersionUID = 1L;
    private JPanel imagePanel, drawPanel;
    private JLabel imageLabel;
    private JButton rotateButton, lineButton, rectButton, polyButton, circleButton, playButton;
    private BufferedImage image;
    private File[] imageFiles;
    private int currentIndex;

    public ImageEditor(File[] imageFiles) {
        super("Image Editor");
        this.imageFiles = imageFiles;
        currentIndex = 0;

        // 初始化UI组件
        imagePanel = new JPanel();
        imageLabel = new JLabel();
        imagePanel.add(imageLabel);

        drawPanel = new JPanel();
        rotateButton = new JButton("Rotate");
        lineButton = new JButton("Line");
        rectButton = new JButton("Rectangle");
        polyButton = new JButton("Polygon");
        circleButton = new JButton("Circle");
        playButton = new JButton("Play");
        drawPanel.add(rotateButton);
        drawPanel.add(lineButton);
        drawPanel.add(rectButton);
        drawPanel.add(polyButton);
        drawPanel.add(circleButton);
        drawPanel.add(playButton);

        // 设置布局
        setLayout(new BorderLayout());
        add(imagePanel, BorderLayout.CENTER);
        add(drawPanel, BorderLayout.SOUTH);

        // 添加事件监听器
        rotateButton.addActionListener(this);
        lineButton.addActionListener(this);
        rectButton.addActionListener(this);
        polyButton.addActionListener(this);
        circleButton.addActionListener(this);
        playButton.addActionListener(this);

        setSize(800, 600);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 显示第一张图片
        showImage();
    }

    private void showImage() {
        try {
            image = ImageIO.read(imageFiles[currentIndex]);
            imageLabel.setIcon(new ImageIcon(image));
            pack();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void rotateImage() {
        // 顺时针旋转90度
        BufferedImage rotatedImage = new BufferedImage(image.getHeight(), image.getWidth(), image.getType());
        Graphics2D g2d = rotatedImage.createGraphics();
        g2d.translate((image.getHeight() - image.getWidth()) / 2, (image.getWidth() - image.getHeight()) / 2);
        g2d.rotate(Math.PI / 2, image.getWidth() / 2, image.getHeight() / 2);
        g2d.drawRenderedImage(image, null);
        g2d.dispose();
        image = rotatedImage;
        imageLabel.setIcon(new ImageIcon(image));
        pack();
    }

    private void drawLine() {
        Graphics2D g2d = image.createGraphics();
        g2d.setColor(Color.BLACK);
        g2d.drawLine(0, 0, image.getWidth() - 1, image.getHeight() - 1);
        imageLabel.repaint();
    }

    private void drawRectangle() {
        Graphics2D g2d = image.createGraphics();
        g2d.setColor(Color.BLACK);
        g2d.drawRect(0, 0, image.getWidth() - 1, image.getHeight() - 1);
        imageLabel.repaint();
    }

    private void drawPolygon() {
        BufferedImage tempImage = new BufferedImage(image.getWidth(), image.getHeight(), image.getType());
        Graphics2D g2d = tempImage.createGraphics();
        g2d.setColor(Color.BLACK);
        int[] xPoints = {0, image.getWidth() / 2, image.getWidth() - 1};
        int[] yPoints = {image.getHeight() / 2, 0, image.getHeight() - 1};
        g2d.drawPolygon(xPoints, yPoints, 3);
        g2d.dispose();
        image = tempImage;
        imageLabel.setIcon(new ImageIcon(image));
        pack();
    }

    private void drawCircle() {
        Graphics2D g2d = image.createGraphics();
        g2d.setColor(Color.BLACK);
        g2d.drawOval(0, 0, image.getWidth() - 1, image.getHeight() - 1);
        imageLabel.repaint();
    }

    private void playImages() {
        Thread thread = new Thread() {
            public void run() {
                for (File file : imageFiles) {
                    currentIndex++;
                    if (currentIndex >= imageFiles.length) {
                        currentIndex = 0;
                    }
                    showImage();
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        };
        thread.start();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == rotateButton) {
            rotateImage();
        } else if (e.getSource() == lineButton) {
            drawLine();
        } else if (e.getSource() == rectButton) {
            drawRectangle();
        } else if (e.getSource() == polyButton) {
            drawPolygon();
        } else if (e.getSource() == circleButton) {
            drawCircle();
        } else if (e.getSource() == playButton) {
            playImages();
        }
    }

    public static void main(String[] args) {
        File[] imageFiles = {new File("image1.jpg"), new File("image2.jpg"), new File("image3.jpg")};
        new ImageEditor(imageFiles);
    }
}

这个程序通过Java Swing库实现了一个简单的图像编辑器，支持打开、旋转、绘制基本图形、连续播放图片等功能。注意：此示例中的图片文件名应该根据实际情况更改。