Object Casting

[Savio Mascarenhas]

Hi Guy's !!!
Have a Map object to which elements are added automatically by using a class that return a Map Object .One of the contents of the Map Object is :
TheMap Key is : FOREGROUND
The Map Value is : java.awt.Color[255,255,255]
Using the Key "FOREGROUND" ...it value can be obtained using
trialmap.get("FOREGROUND");
which returns an object of "Object" type .However,need the object to be converted to an object of class "Color"
which furthur needs to be passed on to another method that expects an object of type "Color" .
How should this conversion or casting be done ?Pls suggest.
Thanks Guy's .

[Guoqiao Sun]

Hi, Savio, you can try as follows:

    public Color getOneColor(Map m, String key)
    {
        Object obj = m.get(key);
        if(obj instanceof Color) return (Color)obj;
        else return null;
    }

And when you use this method, make sure to check the returned value is not null before going ahead.
Hope it helps.

------------------
Guoqiao Sun
Sun Certified Programmer for Java™ 2 Platform
try my mock exam¹² at my homepage.

[Savio Mascarenhas]

Thanks Guoqiao !!!