Questions on HW2-Fall07

Questions on HW2-Fall07

Ask Questions on homework 2 here. Please enclose code with <code> </code> tags.

Question: How do I test my PictureCollage.java file in the interactions pane to see if it works?

You can either hit compile and then the run button or you can hit the compile button and type java PictureCollage in the interactions pane. Dawn Finney.

Question: When I do getMediaPath, Java is giving me a "Couldn't load the file nulltemple.jpg" error. Why is it doing this? and how do I fix it?

You need to set up the media path. Instructions to do this are included in homework 0. Setting up the media path basically just save the media path you give it to a text file (called something like SimplePictureProperties) in the same directory you are working in. Each you call FileChooser.getMediaPath, it goes and retrieves the media path you saved in SimplePictureProperties and appends the filename to it to create a complete file path. If you've never set up the media path, then it'll retrieve a null. Hope this explains some things. Remember to not include setMediaPath in your hw submission, because TAs will have their own media paths set up on their computers. Dawn Finney.

Question: How do I get the pictures to be mirror images of each other without using the methods in Picture.java or re-creating them in my code? What does the hint mean in saying that moving and dropping using two turtles will create a symmetric image?

Using two turtles and the flip method will create a mirror image. There's probably a way to do it without the flip method, but it's likely to require a bit more arithmetic. Dawn Finney.

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Homeworks-Fall 2007 last edited on 23 December 2007 at 7:08 pm by adsl-152-173-97.asm.bellsouth.net