Assignemnt 120 and Receipt

Code

    /// Name: Xinting Chen
    /// Period: 7
    /// Program Name: Programs That Write to Files
    /// File Name: Receipt.java
    /// Date Finished: 5/23/2016
  
    import java.io.IOException;
    import java.io.PrintWriter;
    import java.util.Scanner;
    
    public class Receipt {
    
        public static void main(String[] args) {
    
            PrintWriter fileOut;
            float pricePerGallon = 3.99f;
            float gallonsNum = -1;
    
            do
            {
    
                    Scanner keyboard = new Scanner(System.in);
    
                    System.out.println();
                    System.out.print( " How many gallons would you like?\n> " );
                    gallonsNum = keyboard.nextFloat();
             
            } 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();
        }
}
    

Picture of the output