swing - Only numbers and one decimal point allow on jtextfield in java -


this question has answer here:

  1. have jtextfield in java form. want not allow type alpha(characters) , allow type numbers.

  2. and can't type 2 decimal point , 2 numbers after decimal point.(that jtextfield price..)

please tell me how step step.

use jformattedtextfield numberformat (see for example). alternatively can add own documentfilter document of jtextfield


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