Question

我正在尝试运行一个项目，我的AP计算机科学老师为我们提供了检查我们工作的项目。我一直在尝试两个课程来让老师的代码工作，但无济于事。问题是当私有变量n被初始化时，它给我一个错误，读作“非法开始表达”。任何帮助将非常感激。这是代码：

 package eastersunday;

    public class Easter
{
public static void main(String[] args) 
{
   private int n;
   private int p;

   /**
      Constructs the date of Easter Sunday.
     * @param year
   */
   public Easter(int year)
   {
      int y = year;
      int a = y % 19;
      int b = y / 100;
      int c = y % 100;
      int d = b / 4;
      int e = b % 4;
      int g = (8 * b + 13) / 25;
      int h = (19 * a + b - d - g + 15) % 30;
      int j = c / 4;
      int k = c % 4;
      int m = (a + 11 * h) / 319;
      int r = (2 * e + 2 * j - k - h + m + 32) % 7;
      n = (h - m + r + 90) / 25;
      p = (h - m + r + n + 19) % 32;
   }

   /**
      Gets the month of Easter Sunday
      @return month of Easter Sunday
   */
   public int getEasterSundayMonth()
   {
      return n;
   }

   /**
      Gets the date of Easter Sunday
      @return date of Easter Sunday
   */
   public int getEasterSundayDay()
   {
      return p;
   }
}

Answer 1

尝试此代码，使用主要方法之外的变量和函数

package eastersunday;

    public class Easter
{
public static void main(String[] args) 
{
}
   private int n;
   private int p;

   /**
      Constructs the date of Easter Sunday.
     * @param year
   */
   public Easter(int year)
   {
      int y = year;
      int a = y % 19;
      int b = y / 100;
      int c = y % 100;
      int d = b / 4;
      int e = b % 4;
      int g = (8 * b + 13) / 25;
      int h = (19 * a + b - d - g + 15) % 30;
      int j = c / 4;
      int k = c % 4;
      int m = (a + 11 * h) / 319;
      int r = (2 * e + 2 * j - k - h + m + 32) % 7;
      n = (h - m + r + 90) / 25;
      p = (h - m + r + n + 19) % 32;
   }

   /**
      Gets the month of Easter Sunday
      @return month of Easter Sunday
   */
   public int getEasterSundayMonth()
   {
      return n;
   }

   /**
      Gets the date of Easter Sunday
      @return date of Easter Sunday
   */
   public int getEasterSundayDay()
   {
      return p;
   }
}

Answer 2

我一眼就看出一个问题：你的代码中有一些悬空括号。这使得你在main中声明了你可能有或没有想要的东西，因为你没有用'}'关闭它。确保每个{关闭一个}或您的代码会给您一些错误。

与私有变量相关的非法表达式开始

2 个答案: