Token "{", @ expected after this token in enum for processing 2.2.1

Question

我用 processing 2.2.1 做了一个项目，我使用了一个枚举。但是我调用了我的枚举 Colour.java，但出现错误：

Syntax error on token "{", @ expected after this token.

这是我的代码：

public enum Colour
{   // --> on this line
    RED({0xFF0000, 0xDD0000, 0x990000, 0x660000, 0x330000}),
    GREEN({0x00FF00, 0x00DD00, 0x009900, 0x006600, 0x003300}),
    BLUE({0x0000FF, 0x0000DD, 0x000099, 0x000066, 0x000033});

    private final int[] shades;

    public Colour(int[] shades)
    {
        this.shades = shades;
    }

    public int[] getShades()
    {
        return shades;
    }
}

Answer 1

创建新 int 数组的语法需要以 new int[]:

开头

RED(new int[] {0xFF0000, 0xDD0000, 0x990000, 0x660000, 0x330000}),
//  ^^^^^^^^^

唯一可以省略的时间是在声明变量或字段的同时初始化它：

int[] ints = { 1, 2, 3 };

之后，您需要将构造函数的可见性从 public 降低为 package-private 或 private，然后一切正常。

Answer 2

您可以使用可变参数

public enum Colour
{   // --> on this line
    RED(0xFF0000, 0xDD0000, 0x990000, 0x660000, 0x330000),
    GREEN(0x00FF00, 0x00DD00, 0x009900, 0x006600, 0x003300),
    BLUE(0x0000FF, 0x0000DD, 0x000099, 0x000066, 0x000033);

    private final int[] shades;

    Colour(int... shades)
    {
        this.shades = shades;
    }

    public int[] getShades()
    {
        return shades;
    }
}

Token "{", @ expected after this token in enum for processing 2.2.1

Token "{", @ expected after this token in enum for processing 2.2.1

processing

enums

syntax-error