java - javafx Bindings: Text bind to two properties -


i want bind text property of text node 2 properties this: 

text income = new text(); income.textproperty().bind(bindings.concat(available.income.asstring()).concat(" income ").concat(now.getvalue().getmonth().tostring()));

enter image description here

now, when available.income changes, text node reflect update, when 'now' changes nothing happens;

public static simpleintegerproperty income = new simpleintegerproperty private objectproperty<yearmonth> = new simpleobjectproperty<yearmonth>(yearmonth.now());

how can solve this, thanks

you can do

income.textproperty().bind(bindings.createstringbinding(() ->      available.income.get() + " income " + now.getvalue().getmonth(),     available.income, now));

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