下面是一個使用Java的Video類的實例：

import java.util.Date;

public class Video {
    private String title;
    private String description;
    private String url;
    private Date uploadDate;
    
    public Video(String title, String description, String url, Date uploadDate) {
        this.title = title;
        this.description = description;
        this.url = url;
        this.uploadDate = uploadDate;
    }
    
    public String getTitle() {
        return title;
    }
    
    public String getDescription() {
        return description;
    }
    
    public String getUrl() {
        return url;
    }
    
    public Date getUploadDate() {
        return uploadDate;
    }
    
    public void setTitle(String title) {
        this.title = title;
    }
    
    public void setDescription(String description) {
        this.description = description;
    }
    
    public void setUrl(String url) {
        this.url = url;
    }
    
    public void setUploadDate(Date uploadDate) {
        this.uploadDate = uploadDate;
    }
    
    public static void main(String[] args) {
        Video video = new Video("Java Tutorial", "A tutorial on Java programming language", "https://www.youtube.com/watch?v=Hl-zzrqQoSE", new Date());
        
        System.out.println("Title: " + video.getTitle());
        System.out.println("Description: " + video.getDescription());
        System.out.println("URL: " + video.getUrl());
        System.out.println("Upload Date: " + video.getUploadDate());
        
        video.setTitle("Java Video Tutorial");
        
        System.out.println("New Title: " + video.getTitle());
    }
}

這個例子創建了一個Video類，它有一個標題、一個描述、一個URL和一個上傳日期。我們使用構造函數來創建一個Video對象，并使用getter和setter方法來訪問和修改對象的屬性。在主方法中，我們創建了一個Video對象并打印出它的屬性。然后，我們使用setter方法修改標題，并再次打印出新的標題。