Question

I have @Action for example:

@Action
public void example(String name){
//sth to do
}

and I would like to add this method to button generated in netbeans. When I click to Customize Code and write:

myButton.setAction(example(myButton.getName()));

I’m getting error:
‘void’ type not allowed here.

Why I can’t do like this? :/ @Actions generated by netbeans are also return void.

Answer 1

myButton.setAction is a function which expects an argument. example is a function which does not return anything.

myButton.setAction(example(...)) passes the value returned by an invocation of example(...) to setAction.

Do you see why that’s a problem?