Code

   
    /// Name: Afaf Nabeeha
    /// Period: 7
    /// Program Name: Programs That Write Files
    /// File Name: Files.java
    /// Date Finished: 3/8/2016 public class Files

        import java.io.IOException;
        import java.io.PrintWriter;
        import java.util.Scanner;
        import java.util.InputMismatchException;

        public class Files {
        
            public static void main(String[] args) {
        
                PrintWriter fileOut;
                float pricePerGallon = 4.99f;
                float gallonsNum = -1;
        
                do
                {
                    try
                    {
                          Scanner keyboard = new Scanner(System.in);
        
                     System.out.println();
                        System.out.print( "Welcome to the Store!!!\n How many gallons would you like?\n> " );
                        gallonsNum = keyboard.nextFloat();
                    }
                    catch (InputMismatchException e)
                    {
                        System.out.println();
                        System.out.println( "Has to be numeric and positive!!!" );
                    }
                } while (gallonsNum < 0);
                
                try
                {
                    fileOut = new PrintWriter("receipt.txt");
        
                }
                catch(IOException e)
                {
                    System.out.println("Sorry, I can't open the file 'receipt.txt' for editing.");
                    System.out.println("Maybe the file exists and is read-only?");
                    fileOut = null;
                    System.exit(1);
                }
        
                fileOut.println( "+------------------------+" );
                fileOut.println( "|                        |" );
                fileOut.println( "|     CORNER STORE       |" );
                fileOut.println( "|                        |" );
                fileOut.println( "| 2016-01-25 04:38PM     |" );
                fileOut.println( "|                        |" );
                fileOut.println( "| Gallons: "+gallonsNum+"       |" );
                fileOut.println( "| Price/gallon: $ "+pricePerGallon+"  |" );
                fileOut.println( "|                        |" );
                fileOut.println( "| Fuel total: $ "+(gallonsNum*pricePerGallon)+"   |" );
                fileOut.println( "|                        |" );
                fileOut.println( "+------------------------+" );
        
                fileOut.close();
        
                System.out.println( "Your receipt was printed, thank you!" );
            }
        }

             
    
Picture of the output