Java program compiled but not running as expected

// File: CalculateSales.java
// Author: Valisha Powell
// Course: CSC 211
// Purpose: Write a program that computes sales of items found in a file, outputting the results to a different file.
 
 
import java.io.*;
import java.util.*;
 
public class CalculateInput
{
	public static void main(String[] args)
		throws FileNotFoundException
 
 
	{
 
 
			double saleAmount,totalSales;
		    String code = new String();
	        String nameOfFile;
	        String nameOfOut;
	        double nameOfUnit;
 
 
 
	System.out.println(" This program will compute sales from an input file you specify,");
    System.out.println(" placing the results in the output file of your choice.");
 
 
 
			Scanner inScan = new Scanner(System.in);
 
 
			System.out.print("Enter the name of the input file: ");
			nameOfFile = inScan.next();
 
			System.out.print("Enter the name of the output file:");
			 nameOfOut = inScan.next();
 
 
			Scanner fileScan = new Scanner(
								new FileReader(nameOfFile));
		PrintWriter outFile = new PrintWriter(nameOfOut);
 
         System.out.print("Enter the Unit Price:");
         nameOfUnit = inScan.nextDouble();
 
      if   (nameOfUnit <=  0 && nameOfUnit > 1000)
 
	  			{
	  				System.out.println("Enter a positive integer or 0, not grater than 1000: ");
 
	  			}
 
 
 
 
         while (!code.equals("quit"))
		{
			code = fileScan.next();
			code = code.toLowerCase();
			if (!code.equals("quit"))
			{
				saleAmount = fileScan.nextDouble();
 
 
				totalSales = saleAmount * nameOfUnit;
 
 
 
 
				outFile.printf(code +"units at:\t$%8.2f\n", nameOfUnit + " per unit = units at:\t$%8.2f\n", + totalSales);
 
				outFile.println();
 
 
			}
		}
         fileScan.close();
		outFile.close();
 
        System.out.println("Thank you");
        System.out.println("The program will now process the units sold in" + nameOfFile);
        System.out.println("using a unit price of" + nameOfUnit);
 
  }
 
}