# I can't find anything wrong with this but somehow it's wrong.

• 09-12-2012, 09:10 PM
Biscuit Tickler
I can't find anything wrong with this but somehow it's wrong.
I'm in an AP CS class and I was given an assignment that required me to find and correct mistakes. I opened the program and it tells me (on BlueJ)after I try to compile it '.class' expected. I haven't gotten that far into my class to know what that means. Can anyone explain.
Code:

```public class FamilyStats { public static void main(String args []) { /* math equations obtained from: */ http://mathworld.wolfram.com/SampleVariance.html // define some ages int momsAge= 42; int dadsAge= 43;  <---This line shows the first problem. 7 in all. int myAge= 22, sistersAge= 16; int dogsAge= 6; // get the mean double ageSum = (momsAge + dadsAge + myAge + sistersAge + DogsAge); double average = ageSum / 5 / calculate the sample variance double variance= 0.0; variance += (momsAge - average)*(momsAge - average); variance += (dadsAge - average)(dadsAge - average); variance += (myAge - average)*(myAge - average); variance += (sistersAge - average)*(sistersAge - average); variance += (dogsAge - average)*(dogsAge - average); variance = variance / 4; // get the std. dev double standardDev= Math.sqrt(variance); // output the results System.out.println(The sample age mean is: + average); System.out.println("The sample age variance is: " + variance); System.out.println("The sample age standard deviation is: " + standardDev); }```
:frusty:
• 09-12-2012, 09:16 PM
eRaaaa
Re: I can't find anything wrong with this but somehow it's wrong.
-First, take a look at line 7 and 19 and fix the comments :D
-Count the braces
-check upper and lowercase
- ; is necessary in java