How can I programmaticaly check what is allowed input of a JFormattedTextField?

问题

I would like to "clear" a JFormattedTextField programmatically but if I simply call txtAny.setText("") it is doesn't work cause textfield's regex pattern in my case:

private final String FORMATTER_STRING_FLOAT =
 "[\\p{Digit}\\p{Cntrl}]{1,32}(\\.[\\p{Digit}\\p{Cntrl}]{0,2})?";
 

that requires at least one digit.

So my question is: how can I obtain a regex pattern of a JFormattedTextField for at least further manual partial processing?

回答1:

Call setText(anyValidString) rather than setText("")

来源：https://stackoverflow.com/questions/9412081/how-can-i-programmaticaly-check-what-is-allowed-input-of-a-jformattedtextfield