Java Swing- change the icon of the button that was pressed

Question

In Java Swing, is there a quick way to change the icon of whichever button was pressed without having to write it separately for each button. Something like

event.getSource().setIcon( icon );

But this came up with a "cannot find symbol" error. Is there a way to do this?

Thanks in advance

What does *"But this did not work"* mean? – Timothy Truckle Jan 13 '18 at 16:30 — Timothy Truckle, Jan 13 '18 at 16:30
It came up with a compiler error – DalekCaan99 Jan 13 '18 at 16:32 — DalekCaan99, Jan 13 '18 at 16:32

Hovercraft Full Of Eels · Answer 1 · 2018-01-13T16:31:58.710

2

Yes, that will work, but understand that getSource() returns an Object, and so you will need to cast, and cast carefully.

e.g.,

((JButton) event.getSource()).setIcon(icon);

If you're using a "switchboard" type of listener, where the listener is used on many different items (not really recommended that you do), then you'll need to check the type of the source before casting to avoid a casting exception.

If this doesn't work, you will need to be much more specific about "does not work" (not a very helpful phrase for us).

edited Jan 13 '18 at 16:31

answered Jan 13 '18 at 16:30

Hovercraft Full Of Eels

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It works! Thank you very much for your help! – DalekCaan99 Jan 13 '18 at 16:31
@DalekCaan99: you're welcome, but if you ask future questions, please improve your game. "does not work" == "not very helpful information". Show more [mcve] code, and be much more specific. – Hovercraft Full Of Eels Jan 13 '18 at 16:32
I'll accept your answer when it lets me – DalekCaan99 Jan 13 '18 at 16:32
Ok. I'll remember that. – DalekCaan99 Jan 13 '18 at 16:32
@DalekCaan99: don't worry. I answered as a community wiki and I will not gain any reputation from this answer. I felt that the quality of the question was somewhat low (to be honest), and so I did not want to gain rep from this guess of an answer. – Hovercraft Full Of Eels Jan 13 '18 at 16:33
ok. but thanks anyway for your help – DalekCaan99 Jan 13 '18 at 16:34

Java Swing- change the icon of the button that was pressed

1 Answers1