error: cannot find symbol, help!

[Glen Richard]

public class Population { public static void main (String[] args) { int mexicoPopIn = 62000000; int usPopIn = 280000000; double mexicoRate = .07; double usRate = .02; while (mexicoPopFin != usPop/2) { double mexicoPopFin = mexicoPopIn*mexicoRate + mexicoPopIn; double usPopFin = usPopIn*usRate + usPop; if (mexicoPopFin == usPopFin/2) { double Years = mexicoPop*mexicoRate/mexicoPopIn; } System.out.println("number of years until equal population:" + Years ); } }

I am running into the error of:

error: cannot find symbol

This is on each variable I have : mexicoPop, MexicoPopFin, usPop, Years


What have I done wrong? Such a beginner mistake I'm sure...

Also any critique on if this program is even gonna work will be great!!!

[I Wayan Saryada]

Hi,

The error means that the variable can not be found in your code. You don't have these variables defined in your code: mexicoPopFin, usPop, mexicoPop and the Years variable is only available inside the if statement where it was declared.

[Darryl Burke]

I'm closing this thread as a duplicate of http://www.coderanch.com/t/606851/java/java/error-find-symbol