java中的Shape类

Given four shapes a,b,c,d:
a "0 0 0 1 1 1 1 0"
b "10 10 10 11 11 11 11 10"
c "0.5 0.5 0.5 -10 1.5 0"
d "0.5 0.5 0.75 0.75 0.75 0.2"
我要请教的是：如何用Java语言声明shape类及其四个对象a，b，c，d。注意：a中内容是4个point（点）（0，0）（0，1）（1,1）（1,0).b,c，d也是一样。

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API中没有就只能自己写方法传参数了

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引用

API中没有就只能自己写方法传参数了

怎么写啊?

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Java code:

Class Shape
{
double[] points = new double[8];
public Shape(String pointsString)
{
....... //String array to number array
}
}

Shape a = new Shape(strA);

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Java code:

public static void main(String[] args)
{
String a = "0 0 0 1 1 1 1 0";
shape(a);
}

private static void shape(String a)
{
String[] strings = a.split(" ");
StringBuffer sb = new StringBuffer();
for (int i = 0; i < strings.length; i++)
{
String string = strings[i];

if ((i + 1) % 2 == 0)
{
sb.append(string);
System.out.println(sb);
sb = new StringBuf