如何在JAVA中添加或删除颜色？

问题描述：

你好，朋友们

我在VB.NET中有这个代码：

Hello, friends

I have this code in VB.NET:

Public Class MyClass
	Public Sub MyFunction()
		Dim c As System.Drawing.Color
		c = Color.Red
		c = c AND &hFFFFFFFF
	End Sub
End Class

此代码是为C变量添加Color，如何将其转换为C＃或JAVA代码？

我试过这个：

This code is to add Color to c variable, how can I convert this to C# or JAVA Code?
I've tried this:

Color c = Color.Red;
        c = c & 0xFFFFFFFF;

但它没有用!!

but it did not worked!!

答

我看不出该行

I cannot see what the line

c = c AND &hFFFFFFFF

是这样做。 .NET Color结构没有定义按位运算符。

此外，取一个int值并在它和-1之间进行按位AND基本上返回相同的int值。

我的感觉是，这个代码已经被一个不了解它正在做什么的人从java-one中复制过来。此代码不会添加任何颜色;它尝试进行按位操作，使结果保持不变。

您可能必须准确定义您对此声明的期望。

问候。

纠正了关于按位AND事物的微小不精确性。

is doing. .NET Color structure does not have bitwise operators defined.
Moreover, taking an int value and making a bitwise-AND between it and -1 basically returns the same int value.

My feeling is that this code is already copied from a java-one by someone who is not understanding what it is doing. This code does not add anything to color; it tries to make a bitwise operation that leaves the result unchanged.

You may have to define precisely what you are expecting from this statement.

Regards.

Corrected a minor imprecision regarding the bitwise-AND stuff.

如何在JAVA中添加或删除颜色？

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