问题

我正在开发这个控制台应用程序，它基本上是一个大学系统，学生可以发布不同类型的帖子，其他人可以回复他们的帖子。

所以，我有这个启动类

```java
public class startup {

    //不保留所有的学生

    public static void main(String args[])
    {
        boolean flag1 = true;
        **UniLink link = new UniLink();**

        while (flag1 == true)
        {
            System.out.println("**** UniLink System ****" + "\n" + "1. Login" + "\n" + "2. Quit");

            Scanner input_level_1 = new Scanner(System.in);
            int response_level_1 = input_level_1.nextInt();

            switch (response_level_1)
            {
                case 1:{
                    System.out.println("Enter Username : ");

                    Scanner input_level_1_1 = new Scanner(System.in);
                    String response_level_1_1 = input_level_1_1.nextLine();
                    **link.menu(response_level_1_1);**
                    break;
                }
                case 2:{
                    System.exit(0);
                }
                default:{
                    System.out.println("Please Try Again");
                }
            }

        }

    }
}

我正在使用一个名为Unilink的类，它正在执行所有繁重的工作并运行整个程序。我这样做是为了更好地封装和更清晰地呈现代码。我的菜单类允许执行以下任务。

                "1. New Event Post" + "\n" +
                "2. New Sale Post" + "\n" +
                "3. New Job Post" + "\n" +
                "4. Reply to Post" + "\n" +
                "5. Display my Post" + "\n" +
                "6. Display all Post" + "\n" +
                "7. Close Post" + "\n" +
                "8. Delete Post" + "\n" +
                "9. Log Out" + "\n" +
                "Enter Your Choice : ");

但我一直在收到这个错误

错误：在类com.company.UniLink中找不到主方法，请定义主方法为：
   public static void main(String[] args)
或JavaFX应用程序类必须扩展javafx.application.Application

我感激任何帮助

<details>
<summary>英文:</summary>

I am working on this console base application.it is basically a university system on which a student can post different kind of posts and people can reply to there posts.


so, i have this startup class

public class startup {

//not keeping all the student

public static void main(String args[])
{
    boolean flag1 = true;
    **UniLink link = new UniLink();**

    while (flag1 == true)
    {
        System.out.println("**** UniLink System ****" + "\n" + "1. Login" + "\n" + "2. Quit");

        Scanner input_level_1 = new Scanner(System.in);
        int responce_level_1=input_level_1.nextInt();

        switch (responce_level_1)
        {
            case 1:{
                System.out.println("Enter Username : ");

                Scanner input_level_1_1 = new Scanner(System.in);
                String response_level_1_1=input_level_1_1.nextLine();
                **link.menu(response_level_1_1);**
                break;
            }
            case 2:{
                System.exit(0);
            }
            default:{
                System.out.println("Please Try Again");
            }
        }

    }

}

}

I am using a class called Unilink which is doing all the heavy lifting and running the whole program. I did this for better encapluation and cleaner presentation of the code. My menu class allows to perform following tasks. 

            "1. New Event Post" + "\n" +
            "2. New Sale Post" + "\n" +
            "3. New Job Post" + "\n" +
            "4. Reply to Post" + "\n" +
            "5. Display my Post" + "\n" +
            "6. Display all Post" + "\n" +
            "7. Close Post" + "\n" +
            "8. Delete Post" + "\n" +
            "9. Log Out" + "\n" +
            "Enter Your Choice : ");

but i have been getting this error

Error: Main method not found in class com.company.UniLink, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

I appericiate any help

</details>