Java Color from String “Yellow”

问题

Is there any way we can get color from String (like "White")?

Color color;
Field field = Class.forName("java.awt.Color").getField("Yellow");
color = (Color)field.get(null);

I tried Converting a String to Color in Java and it throws error . What "Field" belongs to? What package do I need to import for it?

回答1:

It is because the field that defines yellow is named YELLOW or yellow

You have an uppercase Y, which cannot be mapped to a Color. Instead, try:

Field field = Class.forName("java.awt.Color").getField("yellow");

Look at this class for all the fields contained within Color http://download.oracle.com/javase/6/docs/api/java/awt/Color.html

The code is just using reflection to access one of these fields.

The list of colours however is quite limited, so I don't know how much use this is likely to be for you.

回答2:

.getField("yellow"); 

"yellow" not "Yellow"

来源：https://stackoverflow.com/questions/5519617/java-color-from-string-yellow