程序没有为Java编译我错过了什么

Question

package freshjuice;


class FreshJuice {

    enum FreshJuiceSize { SMALL, MEDIUM, LARGE }
        FreshJuiceSize size;
    }


}

public class FreshJuiceTest {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        FreshJuice juice = new FreshJuice();
        juice.size = FreshJuice.FreshJuiceSize.MEDIUM ;
        System.out.println("Size: " + juice.size);
        // TODO code application logic here
    }

}

这是我收到的错误消息：

Error: Main method not found in class freshjuice.FreshJuice, please define the main method as:
   public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application
C:\Users\TheGODMasterDu\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 2 seconds)

Answer 1

您的文件必须被称为FreshJuiceTest.java，因为这是您的主要方法所在的类。

Answer 2

您的文件名为FreshJuice.java，但不包含main()
简而言之，在你的第一堂课中寻找main()的netbeans

将文件名更改为FreshJuiceTest.java或更换类的代码，并将FreshJuice.java定义为public并从第二类中删除public