Chocolate Toxicity Analyzer

Question

Hey ppl i got this program ive been working on and its giving me a little trouble, maybe some1 looking from a diffrent perspective will see the problem.
The program runs from an in file that looks like this...
3
milk 10 20
semisweet 30 40
baker's 1 100
Here's the just of what the program is supposed to do...
The local vet clinic has asked me to write a program that, given the circumstances of a situation where a dog has consumed chocolate, determines a suggested treatmeent. I know the following facts:
On average,
Milk chocolate contains 44 mg of theobromine per oz.
Semisweet chocolate contains 150 mg of theobromine per oz.
Baker's chocolate contains 390mg of theobromine per oz.
And the suggested treatments for the amount of theobromine consumed/dog's body weight are as follows:
<20mg/kg Monitor animal's behavior.
20 - 100mg/kg Induce vomiting and administer activated charcoal. Animal may return home.
100mg/kg Induce vomiting and administer activated charcoal. Leave animal at clinic.HINT: 3.5 oz = 1mg
Input:
The first line of the input file will contain a single integer indicating the number of data sets. //in this case 3
The next lines will each contain "chocolateType ChocolateAmount DogWeight", where:
1. "ChocolateType: will be one of the following, "Milk", "Semisweet", or "Baker's".
2. "ChocolateAmount" will be an integer (1-32) indicating the amount of chocolate in oz consumed.
3. "DogWeight" will be an integer (5 - 150) indicating the weight of the dog in kg.
Output:
for each dataset, output a single line containing the suggested treatment given the parameters and above table.
Example Output To Screen
Induce vomiting and administer activated charcoal. Animal may return home.
Induce vomiting and administer activated charcoal. Leave animal at clinic. Monitor animal's behavior.
PROBLEM:
The main problem is with the first for loop. When the for loop runs for the first time it "skips" everything in it, then when it goes back up to the top to run again it does fine.
I usually dont like to post the WHOLE program but i think it would help you if u saw the whole thing. It may be a liitle confusing to what everything does but i tried to use very descriptive variables to help you. Here's the program...
//Tyler Webb
//4-4-08
//All Rights Reserved
import java.io.*;
import java.util.*;
public class cta
public static void main(String args[])throws IOException
Scanner dataFile = new Scanner(new File("C:\\cta.in"));
////////////////////////////VARIABLES///////////////////////////////////////////
//gets the value of how many times to run the 4 loop
int control = dataFile.nextInt();
int milkpoison = 44;
int semisweetpoison = 150;
int bakerspoison = 390;
int dogweight = 0;
int amountofpoison = 0;
String typeofchocolate;
int parsed = 0;
String fake = " ";
//Blood Poison Concentration
int bpc = 0;
int firstlvl = 0;
int secondlvl = 0;
int thirdlvl = 0;
//for loop to run through each line in the data file
for(int x = 0; x < control; x++)
String newDataFile = dataFile.nextLine();
StringTokenizer currentLine = new StringTokenizer(newDataFile);
while(currentLine.hasMoreTokens())
//System.out.println("hi");
//resets variables
dogweight = 0;
amountofpoison = 0;
parsed = 0;
fake = " ";
typeofchocolate = currentLine.nextToken();
fake = currentLine.nextToken();
int AmountOfConsumedChocolate = Integer.parseInt(fake);
String dogweight1 = currentLine.nextToken();
dogweight = Integer.parseInt(dogweight1);
if(typeofchocolate.equalsIgnoreCase("milk"))
//figures the amount of poison by multiplying amount consumed
//by amount of poison in each type of chocolate
amountofpoison = (AmountOfConsumedChocolate * milkpoison);
bpc = amountofpoison / dogweight;
if(typeofchocolate.equalsIgnoreCase("semisweet"))
//figures the amount of poison by multiplying amount consumed
//by amount of poison in each type of chocolate
amountofpoison = (AmountOfConsumedChocolate * semisweetpoison);
bpc = amountofpoison / dogweight;
if(typeofchocolate.equalsIgnoreCase("baker's"))
//figures the amount of poison by multiplying amount consumed
//by amount of poison in each type of chocolate
amountofpoison = (AmountOfConsumedChocolate * bakerspoison);
bpc = amountofpoison / dogweight;
System.out.println(bpc);
if(bpc < 70)
System.out.println("Monitor animal's behavior.");
else if(bpc > 350)
System.out.println("Induce vomiting and administer activated charcoal. Leave animal at clinic");
else
System.out.println("Induce vomitin and administer activated charcoal. Animal my return home.");
//end of 4 loop
}

Answer 1

From your question I'll have to ask: do you know how to use a debugger and step through your code?
You problem is not in your "for" statement, it's in your use of your scanner object and nextLine().
I've not used scanner enough, nor looked up the details, to know the technical aspects of your problem, but as far as I see--when you start the read, the scanner is not yet into the file so you get a blank line--""--and then you are set to read from the file on the next call to nextLine().
That's probably why for file I/O you use some kind of file reader--they don't have this problem.
BTW: by publishing your product to a public forum, you're little all rights reserved, is no longer in effect.