HELP! how to display an image when clicking on JLabel?

hi. new to the forums. anyway, i need help in displaying an image.
what i'm trying to do is when clicking on a JLabel using mouseClicked, an image will show and when the image is clicked it will disappear. i've searched and searched and have not found anything useful. thanks...

thanks.
searched on the setIcon, didn't find anything. btw, i know how to set the icon on the JLabel. i'm trying to figure out how i can get it that when i click on the JLabel by using the mouseClicked (or maybe even mousePressed) listener, the image pops up and when i click on the image, it closes or disappears.
btw, i'm using the netBeans GUI builder for this. thanks again.

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