在JFrame中设置文本动画或向上滚动文本

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class TextAnimationExample extends JFrame {
    private JLabel label;
    private Timer timer;
    private int yPos;

    public TextAnimationExample() {
        setTitle("文本动画示例");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 300);

        label = new JLabel("这是滚动的文本");
        label.setFont(new Font("Arial", Font.BOLD, 20));
        label.setHorizontalAlignment(SwingConstants.CENTER);
        add(label);

        timer = new Timer(100, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                yPos -= 5; // 每次向上移动5个像素
                label.setLocation(label.getX(), yPos);

                if (yPos + label.getHeight() < 0) {
                    yPos = getHeight(); // 当文本超出窗口上边界时，将其移动到窗口底部重新开始滚动
                }
            }
        });

        yPos = getHeight();
        timer.start();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                TextAnimationExample example = new TextAnimationExample();
                example.setVisible(true);
            }
        });
    }
}