draw a JPG - easy 1

[russland]

hi,
i'm driving nuts not understanding what it takes to draw a jpg to my tab panel (or any other place in my applet).

this is what i did so far. it fails when i want to instantiate the Graphics object. what am i doing wrong

String firstImage = "C:\\folder\\photos\\test.jpg";
Toolkit tk = Toolkit.getDefaultToolkit();
Image img = tk.getImage(firstImage);
img = getImage(getDocumentBase(), firstImage);
Graphics g = img.getGraphics();


i'd appreciate any help. thanks heaps. (btw. i just read Toolkit class touches OperationSystem dependent resp. native OS behaviours. Any other way to output images in an applet?)

 

[sedj]

1) This forum is for J2EE posts, not core Java API posts. You want the Java (Sun) forum.

2) If you get an error - then post the error. You may not understand fully what it means, but it usually allows experienced programmers to debug a programme more quickly.

3) All Java code relies on OS dependant code. Especially code using native windowing APIs. You'll never get away from that.

4) I was under the impression that AWT related classes could not read JPEGs, only gifs. You'll need to use JAI or the javax.imageio package to decode a JPEG.



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[russland]

cheers, fo(u)r these answeres. i'll repost in the accurate forum.

 

[russland]

your were right. the superclass image is always used... see sun documentation

Class Image java.lang.Object
java.awt.Image
Direct Known Subclasses: BufferedImage, VolatileImagepublic abstract class Imageextends Object The abstract class Image is the superclass of all classes that represent graphical images. The image must be obtained in a platform-specific manner.