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Java MIDI BeatBox Clearing

 
Franklin Marquette
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So I wrote this program as a sort of BeatBox - each checkbox corresponds to a beat by a different instrument

I would like to have all the checkboxes clear when the user clicks the "Reset" button

I don't know how I would do this - maybe a repaint() method?

Thanks for the help!

Code:

 
Darryl Burke
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The way to clear a JCheckBox is to setSelected(false). To clear a number of checkboxes, you would do that for each one, either individually, or, if they have been added to an array or List, in a loop.
 
Franklin Marquette
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Okay so do a for for each of the 16 rows like this:



And then within that for do another for to loop through the 16 columns like this:



And within the inner for loop would I then just put JCheckbox.setSelected(false);

As that loops through shouldn't it clear all the checkboxes?

Thanks
 
Darryl Burke
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Franklin Marquette wrote:And within the inner for loop would I then just put JCheckbox.setSelected(false);

As that loops through shouldn't it clear all the checkboxes?


What happened when you tried it?
 
Campbell Ritchie
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I had to break the long lines in your first post because they are so difficult to read, and you can see how you should do it. Look at lines 16-22.

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Franklin Marquette
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It does nothing when I press the "Reset" button

Code:

 
Darryl Burke
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It does nothing because you're not calling setSelected(...) of the JCheckBoxes in your GUI, but rather of new instances that aren't seen anywhere, and go out of scope immediately thereafter.
 
Franklin Marquette
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Okay so I added a new reset function and I believe it works - I also added a way to save and load a beatbox pattern

It compiles fine but the "Load Pattern" and "Save" buttons don't show up and there is only one checkbox instead of 256(16 X 16)

I am lost on how to solve this

If I click on the one checkbox that appears it plays all the sounds and when I click reset it clears the one checkbox - so the reset seems to be working

Here's the code:

 
Campbell Ritchie
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What sort of layout are you using to set the locations of your check boxes? It sounds as though you have got a problem with the layout.

Added later:
Franklin Marquette wrote: . . . there is only one checkbox instead of 256(16 X 16)
. . .
If I click on the one checkbox that appears it plays all the sounds and when I click reset it clears the one checkbox - so the reset seems to be working
. . .
That sounds as though you have all 256 in the same location.
 
Franklin Marquette
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Okay I got it fixed - works perfect now

Thanks everyone for all the help!
 
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