小编use*_*084的帖子

可能重复:
方法何时应该是静态的？

我正在尝试为管/地铁票机制作接口类.不是真的,而是计算机科学模块的课程.我不明白何时使用静态方法.我不太了解计算机科学,但主要方法似乎使用静态.

class UNInterfaceTest
{
   public static final int NOTTING_HILL = 1;
   public static final int HIGH_KEN = 2;
   public static final int GLOUS = 3;
   public static final int SOUTH_KEN = 4;
   public static final int SLOANE = 5;
   public static final int VICTORIA = 6;
   public static final int ST_JAMES = 7;
   public static final int WESTMINSTER = 8;
   public static final int QUIT = 10;
   private Input in = new Input();

private static void displayMenu()
{ …