java – 静态对象数组

public class Array                                                               
{
    static String[] a = new String[] {"red","green","blue"};
    static Point[] p = new Point[] {new Point(1,2),"3,4"};

    public static void main(String[] args)
    {
        System.out.println("hello");
    }

    class Point
    {
        int x;
        int y;

        Point(int x,int y)
        {
            this.x = x;
            this.y = y;
        }

        Point(String s)
        {
            String[] a = s.split(",");
            x = a[0].parseInt();
            y = a[1].parseInt();
        }
    }
}

在上面的程序中,静态Point数组初始化失败,报告错误：

Array.java:4: non-static variable this cannot be referenced from a static context
    static Point[] p = new Point[] {new Point(1,4"};

但是,静态String数组成功.他们之间有什么区别？

我真的需要一个静态对象数组,因为它很容易引用而不实例化外部类.

谢谢