java - Unable to setVisible(false) of JFrame -


i creating medical shop billing software in have 3 jframes 1 of need setvisible(false) on click jmenuitem. each time compile error displayed 

jframe f accessed within inner class; needs declared final

can please me on this?

if need access variable on outer class. need add final this:

final public jframe frame

you can read here more information final (java) on wikipedia.


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