limit input

[mike cool]

hi all
how can i force the user to enter limit input
the type is short
limit is 3 digit
so he can only enter 3 digit
thx in advance

[Ernest Friedman-Hill]

Command line? Swing? JSP?

[mike cool]

command line or swing or both

[Ernest Friedman-Hill]

Command line, the only choice is a loop like

String answer = "";
while (answer != null && !isValidAnswer(answer)) {
  answer = reader.readLine();
}
...
boolean isValidAnswer(String s) {
   // Regular expression for a 3-digit integer
    return s.matches("\\d\\d\\d"); 
}

In Swing, you could use JFormattedTextField.

[mike cool]

thanks that helps
i have other part that i can't solve
let say input will be 16485(short)
how can i converted to 3 decimal digits 0.170 ??