Please explain.that still doesn't work,
Why use client properties when the class has a method you can call directly to determine if it has an image: see the icon get and set methods for the class.
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Re: Help with checking JButton positions please
Please explain.that still doesn't work,
Why use client properties when the class has a method you can call directly to determine if it has an image: see the icon get and set methods for the class.
If you don't understand my answer, don't ignore it, ask a question.
Re: Help with checking JButton positions please
I have already set the button to have an ImageIcon though, I just need to know how I can tell if it has an image or not,
say I have two buttons I click on one, and I want to know if the left of that button has an image?
Re: Help with checking JButton positions please
Call the method that will return the image if it has one. Read the API doc for the JButton class and see what method returns the current icon/image that the object is using.how I can tell if it has an image or not,
If you don't understand my answer, don't ignore it, ask a question.
Re: Help with checking JButton positions please
I have looked at the API, and I can only find checkImage(), but not sure how to use it in this context :/ ?
Thanks for all your help again
Re: Help with checking JButton positions please
Your code uses the setIcon() method to set the image.
Look at the getIcon() method for getting the image that was set with the setIcon() method.
If you don't understand my answer, don't ignore it, ask a question.
Re: Help with checking JButton positions please
I have tried:
System.out.println("There is an image!"); }
But I get a nullPointerExceptionError?
Re: Help with checking JButton positions please
What variable is null? Where does the code assign a non-null value to the variable?I get a nullPointerExceptionError
See posts #49 and 43. Make sure the code is not using a variable that is local to a method.
If you don't understand my answer, don't ignore it, ask a question.
Re: Help with checking JButton positions please
it assigns a null value to the 'leftbtn', I just can't seem to get it :/
Re: Help with checking JButton positions please
That means that the button array has a null value. Why does the button array have a null value?
See posts #49 and 43. Make sure the code is not using a variable that is local to a method.
How many variables named: button are defined in the code?
Which one has values assigned to it?
Which one NEVER has values assigned to it and will contain null entries?
If you don't understand my answer, don't ignore it, ask a question.
sim18 (December 4th, 2012)
Re: Help with checking JButton positions please
THANK YOU SOOOOOOOO MUCH!
You have made my day!!!
Re: Help with checking JButton positions please
Glad you found it. I don't know why IDEs don't give warnings when variable definitions shadow other definitions.
If you don't understand my answer, don't ignore it, ask a question.
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