Cannot compile program

Question

Hi all,
I?m unable to compile the following code. Does anybody know what I did wrong?
In the main method the program asks for 3 values which then are used in the auto-class to do a calculation. But I made some mistake within the constructor and I don?t know which one.
Here?s the code:
import java.io.* ;
class auto
  // Instanzvariablen
  int    startMeilen;   // Anfangsmeilenstand
  int    endMeilen;     // Endmeilenstand
  double gallonen;      // verbrauchte Gallonen
  // Konstruktor
  Auto (int startTacho, int endTacho, double galls)
    startMeilen = startTacho;
    endMeilen = endTacho;
    gallonen = galls;
  // Methoden
  double berechneMPG()
    return (endMeilen - startMeilen) / gallonen;
class MeilenProGallone1
  public static void main( String[] args )
      throws IOException
    BufferedReader userIn =
        new BufferedReader(
        new InputStreamReader( System.in ) );
    String charData;
    int    startTacho, endTacho;
    double galls;
    System.out.println("Anfangsstand eingeben: " );
    charData    = userIn.readLine();
    startTacho = Integer.parseInt( charData );
    System.out.println("Endstand eingeben: " );
    charData  = userIn.readLine();
    endTacho = Integer.parseInt( charData );
    System.out.println("Gallonen eingeben: " );
    charData = userIn.readLine();
    galls = Integer.parseInt( charData );
    Auto auto = new Auto( startTacho, endTacho, galls );
    System.out.println( "Meilen pro Gallone: " + auto.berechneMPG() );
} And this is the error message:
MeilenProGallone1.java:11: invalid method declaration; return type required
Auto (int startTacho, int endTacho, double galls)
Thanks for helping!

Answer 1

class auto
Auto (int startTacho, int endTacho, double galls)Capitalization matters.