Assignemnt #120 and Programs That Write to Files

Code

  /// Name: Marco Correa
  /// Period: 5
  /// Program Name: Collatz Sequence
  /// File Name: Collatz Sequence.java
  /// Date Finished: 5/14/2016




  import java.io.IOException;
      import java.io.PrintWriter;
      import java.util.Scanner;
    
      public class Receipt {
    
          public static void main(String[] args) {
    
              PrintWriter fileOut;
              double gallons;
              double pricePerGallon = 5.124;
              double totalCost;
            
              Scanner k = new Scanner(System.in);
            
              System.out.print("Enter the number of gallons you want filled: ");
              gallons = k.nextDouble();
            
              totalCost = gallons * pricePerGallon;
    
              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( "Receipt" );
              fileOut.println();
              fileOut.println( "Gallons: " + gallons );
              fileOut.println( "Price/gallon: $ " + pricePerGallon );
              fileOut.println();
              fileOut.println( "Fuel total: $ " + totalCost );
    
              fileOut.close();
          }
      }

    

Picture of the output