how to parsing 10 digit number text into integer in java -

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i have set "phone" int of 10 digit in database , take input text parse using

string phone1=request.getparameter("phone");  int phone =integer.parseint(phone1);

but not work why?

in java can store in int variable numbers in range -2147483648 2147483647. not enough 10-digit telephone numbers. can fix using long:

long phone = long.parselong(phone1);

on other hand rethink using number data types storing telephone numbers. why?

  • because can't store leading zeros if numbers not 10 digits long.
  • because loose formating, "123-456-..."
  • because can't save things # or p, valid used in phone numbers

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