java - How to get the subtraction result of two EditText in third EditText for Android? -

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i'm new android programming. while making program looking program auto fill subtraction result of 2 edittext widgets in third edittext, without button. please me find solution.

int firstvalue=firsttext.gettext.tostring(); int secondvalue=secondtext.gettext.tostring(); int answer=firstvalue - secondvalue; thirdvalue.settext(answer);

hope works. if problem occour tell me


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