actionListener & setSelected(true)

[new2java2009]

I have 3 radio buttons added to a buttonGroup.

I created action listeners for each one of the buttons.

When I clicks on the buttons from the screen, the listeners work fine.

When I do setSelected(true) programatically on these buttons, why my listeners never get fire?

Thanks!

[mine0926]

instead of actionListener try to use ChangeListener

[new2java2009]

I can't use changeListner because I only want it to happen once when the button is selected.

Does anybody know if actionListener should or should not fire with setSelected(true)?

[Tolls]

No it shouldn't as far as I know.
You get a state change (because that's what it is), but not an action (because it isn't).

You can always fire the event yourself, though that would be a bit of a pain if you setSelected() alot.

[subith86]

Hi new2Java2009,

Can't help you with this problem, but a humble suggestion.

According to Java coding standards, your setter method should be named isSelected rather than setSelected if the argument is of boolean type.

[KevinWorkman]

Hi new2Java2009,

Can't help you with this problem, but a humble suggestion.

According to Java coding standards, your setter method should be named isSelected rather than setSelected if the argument is of boolean type.

That is absolutely not true. What coding standards are these?

[subith86]

It is not required, but recommended. Have read it in many books including SCJP by Kathy Sierra.
But i was wrong about setter methods. "is" is recommened for getter methods. These links tell the same thing
Java Beans naming convention for getter and setter methods (SCJP forum at JavaRanch)
naming methods and variables : Java Glossary

[Fubarable]

.... but a humble suggestion.

According to Java coding standards, your setter method should be named isSelected rather than setSelected if the argument is of boolean type.

It is not required, but recommended. Have read it in many books including SCJP by Kathy Sierra.
But i was wrong about setter methods. "is" is recommened for getter methods. These links tell the same thing
Java Beans naming convention for getter and setter methods (SCJP forum at JavaRanch)
naming methods and variables : Java Glossary

No I don't believe that they do, not for setter methods, and I fear that in your initial post above you are confusing getter with setter methods.

[JosAH]

No I don't believe that they do, not for setter methods, and I fear that in your initial post above you are confusing getter with setter methods.

Even Sun (Oracle?) itself sinned against that rule, e.g. getInheritsPopupMenu() in the JComponent class (there are more examples).

kind regards,

Jos

[bikashg]

This should work :
radiobutton.doClick();

I have 3 radio buttons added to a buttonGroup.

I created action listeners for each one of the buttons.

When I clicks on the buttons from the screen, the listeners work fine.

When I do setSelected(true) programatically on these buttons, why my listeners never get fire?

Thanks!

[Tolls]

Reporting spam.

[KevinWorkman]

Reporting spam.

Thanks. Spammer zapped.