Where to put a jpg using BlueJ

teachFun

Hi everybody, since this year, I'm using BlueJ and processing to teach my students the java basics. I use BlueJ because later that year they have to use it for other projects. I put the processing "core.jar" in a folder wich is named "+libs" in my BlueJ project folder - no problem. But where do I have to put an image like "bild1.jpg" so it is found by processing. I tried to put it inside the BlueJ-project folder, inside the +libs-folder. I tried using "bild1.jpg", "./bild1.jpg", ".\bild1.jpg" . Everytime I got a Null pointer exception when using "image(img,0,0)". Thanks in advance for every hint, Ingo

quark

Try using the sketchPath () method to find the location to store the images.

GoToLoop

Also check out the String returned by dataPath(): L-)

void settings() {
  println(dataPath("") + '/');
}

That folder path is the ideal place to put in any loadable resources. :)>-

teachFun

Thank you very much for both suggestions, but neither one worked.

I tried:

println(dataPath("") + '/');

and got

/Users/MyName/Desktop/PicManipulation/data/

Using sketchPath() I got

/Users/MyName/Desktop/PicManipulation//

By the way, "PicManipulation" is the name of the BlueJ-Project and I'm worked on a mac using 10.10.5, but my students use Win7 or Win10.

Because there was not such a folder, I created one and put the file inside of it. It didn't work.

So this is, what I have now:

public void settings() { size(320, 240); println(dataPath("") + '/'); println(sketchPath("") + '/'); img = loadImage("pic1.jpg"); }

And this is my file structure:

Any suggestions?

Thanks in advance.``````

GoToLoop

I guess an already compiled Processing Java program is gonna have its sketchPath field pointing to the folder where its ".jar" file is being run from. :-B

teachFun

I tried that and put the jpg-file inside the +libs-folder. It didn't work. Sorry.

GoToLoop

I've meant the sketch's ".jar", not Processing's library ".jar". :-\"

teachFun

Well, the sketchpath is "/Users/MyName/Desktop/PicManipulation//" . So I tried putting it in the projectfolder "PicManipulation", but the pic wasn't found. How do I have to understand the "//" at the end of the sketchpath? And additional folder named "sketch" didn't work either.