Why can't I get this as an integer

Question

OK this code mostly works.
stations is an arrayList.
On the last line I want to get an integer from my text input.
I want the token to be parsed as an int, so the get() method will find the object that resides there.
I tried but I'm useless :o(
Someone give me a shove in the right direction please.
public void Read()
            try
                FileReader file = new FileReader("test2.txt");
                BufferedReader buff = new BufferedReader(file);
                String line = buff.readLine();               
                Station st;
                StringTokenizer ast = new StringTokenizer(line); 
                    for (int i = 0; i < 4; i++)
                       //create new Stations   
                       stations.add (new Station(ast.nextToken(), null, null, null, null, null, null, null));
// the above piece of code creates the Stations ok
                    for (int i = 0; i < 4; i++){
                         line = buff.readLine();
                         ast = new StringTokenizer(line);
                         for (int j = 0; j < 5; j++){
                              //add new passsengers to Station
                              st = (Station)stations.get(i);
                                     st.addPassenger(new Passenger(ast.nextToken(),(Station)stations.get(??(ast.nextToken()) )  ));
                    }               

Answer 1

I tried:
Integer.parseInt(ast.nextToken())
but when I compile I get :
cannot find symbol method parseint(java.lang.String)