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Thread: inheritance help

  1. #1
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    Default inheritance help

    i'm currently working on a project where i'm required to create 3 different generators, all of different sizes and color. what i'm trying to do is when i click on one of these rectangles, a new draggable rectangle appears in the upper left corner of the screen. that is how far i've gotten. my problem lies in that the rectangle that appears is a square of default size and color, and doesn't inherit the properties of the rectangle which i click on. i assume this is an interface type problem, however having little practice with the topic, i wouldn't know where to begin. if i'm off track and it's a whole different problem, additional information would be greatly appreciated. thanks in advance.


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    Default Re: inheritance help

    Without any code to show what you are talking about, its hard to say anything about your problem.
    Is this a java programming problem? Your description makes it sound like some GUI design program.
    Can you explain what you are doing and what tools you are using?

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    Default Re: inheritance help

    we use bluej, and the wheels package. the basic gist of what i'm trying to accomplish is:

    when the program is run, 3 rectangles are on the screen, all of different sizes and colors. for example a red square with the dimensions say 50x50, a green rectangle dimensions 100x50, and a blue rectangle 40x80. when one of these rectangles is clicked, a new rectangle, identical in size and color of the rectangle clicked, appears in the top left of the frame. this block is able to be clicked and dragged across the frame.

    as for the problem i have, i am able to make the three rectangles appear, all of which when clicked create a new rectangle that is able to be dragged. however, the rectangle that appears is the same for when i click any of the rectangles, and has nothing in common with any of the clickable rectangles. i believe the problem i'm having is that within the constructor in the draggable rectangle class, there is no way for me to set the size and color of the rectangle based on the values found in the constructor of the rectangle i click.

    if any more information, such as the code i have so far, is needed, let me know.

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    Default Re: inheritance help

    Sorry, I have no idea what your code is doing and can't recommend anything without seeing the code.

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