android - String.equals() always returns false? -


i trying make sign in page android app. team leader has decided make webservice.

whenever uses logs in, request sent, 3 possible responses:

0: wrong password 20: wrong username otherwise: uuid

i trying validate results given webservice this:

    string resultstring = result.tostring();     if (resultstring.equals("20")) {         toast.maketext(getbasecontext(), "het ingevulde emailadres klopt niet!", toast.length_long).show();         return;     } else if (resultstring.equals("0")) {         toast.maketext(getbasecontext(), "het ingevulde wachtwoord klopt niet!", toast.length_long).show();         return;     } else {         toast.maketext(getbasecontext(), "debug, klopt", toast.length_long).show();         return;    }

seems basic code me. however, code shows bottom statement, lets first 2 pass false.

for debugging purposes, returning resultstring console. (removed line in sample). there can see result given in fact 20.

how can such simple code not want do?

thanks.

response not string comparing "0" , "20". response 

0: wrong password 20: wrong username otherwise: uuid

if want compare string should

options : 1

string resultstring = result.tostring(); if (resultstring.equals("20: wrong username")) {     // code } else if (resultstring.equals("0: wrong password")) {     // code } else {     // code }

option : 2

instead of eqauls should use contains

string resultstring = result.tostring(); if (resultstring.contains("20")) {     // code } else if (resultstring.contains("0")) {     // code } else {     // code }

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