Errors with small program

Question

Ok, I'm trying to get a small program to compile on my windows box. I'm a student and in the lab (on a linux box) the program compiled fine. I keep getting this error:
Easypieces.java:52: cannot resolve symbol
symbol : variable volume
location: class EasyPieces
System.out.println("Volume:" + volume);
^
2 errors
Here's the code:
* Student should complete the five methods, document the class
* and the methods, and test this well. You may remove the instructor
* comments.
public class EasyPieces {
* Student should complete and document this method
public void waterBalloons(int radius) {
     double cubedRadius = Math.pow(radius, 3);
     double volume;
     double volume = 4/3 * Math.PI * cubedRadius ;
* Student should complete and document this method
public void upsLoad(double computer, double monitor, double other) {
* Student should complete and document this method
public void carpool(int people) {
* Student should complete and document this method
public void checksum(int number, int base) {
* Student should complete and document this method
public void combinationLock() {
* Instructor provided test cases. Student should add additional
* test cases as necessary to make sure the program functions as
* intended.
public static void main(String[] args) {
//Create an object of type EasyPieces to use for the testing
EasyPieces testPiece = new EasyPieces();
//Instructor provided test for waterBalloons
testPiece.waterBalloons(6);
System.out.println("Volume:" + volume);
//Instructor provided test for upsLoad
//testPiece.upsLoad(1.2,0.8,1.4);
//System.out.println("----------------------------------------------------------------------");
//Instructor provided test for carpool
//testPiece.carpool(15);
//System.out.println("----------------------------------------------------------------------");
//Instructor provided test for checksum
//testPiece.checksum(156,7);
//System.out.println("----------------------------------------------------------------------");
//Instructor provided test for combinationLock
//testPiece.combinationLock();
//System.out.println("----------------------------------------------------------------------");
For some reason it doesn't want to print the variable out...
Any help?
Thanks, Greg

Answer 1

<< That code didn't compile on your linux box, guaranteed. :o) >>
This program didn't but one similiar to it did, and I get the same error message when I try to compile it on my windows box:
public class zeller {
     public static void main(String args[]) {
          int month = 2;
          int day = 29;
          int year = 2000;
          if (month == 2) {
               year = year -1;
               day = day +3;
          if (month == 1) {
               year = year -1;
               day = day;
          if (month == 3) {
               year = year;
               day = day + 2;
          if (month == 4) {
               day = day + 5;
          if (month == 5) {
               day = day;
          if (month == 6) {
               day = day + 3;
          if (month == 7) {
               day = day + 5;
          if (month == 8) {
               day = day +1;
          if (month == 9) {
               day = day +4;
          if (month == 10) {
               day = day +6;
          if (month == 11) {
               day = day +2;
          if (month == 12) {
               day = day +4;
          int sum = year + year/4 - year/100 + year/400 + day;
          int dayOfWeek = sum % 7;
          System.out.println(dayofweek);
I get this error in windows (the same error I get with the other program):
D:\JAVA\jdk142\bin>javac zeller.java
zeller.java:67: cannot resolve symbol
symbol : variable dayofweek
location: class zeller
System.out.println(dayofweek);
^
1 error
Greg