java - JFormattedTextField not working correctly -


i have code:

jformattedtextfield formattedtextfield = new jformattedtextfield();         formattedtextfield.setbounds(25, 330, 56, 20);         contentpanel.add(formattedtextfield);         formattedtextfield.setvalue(new double(10.0));

its supposed accepting double numbers, if input character, 's', taken anyway. how can change block make accept keyboard numbers or ','? ignoring other character


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