import java.util.ArrayList;

public class Notebook
{
    private ArrayList<String> notes= new ArrayList<String>();

    public void storeNote(String note)
    {
        notes.add(note);
    }

    public int numberOfNotes()
    {
        return notes.size();
    }

    public void showNotes()
    {
      for(String note : notes)
          System.out.println(note);
    }

    public void showNote(int noteNumber)
    {
        if (noteNumber < numberOfNotes()&&noteNumber>=0){
            System.out.println(notes.get(noteNumber));
        }else{
            System.out.println("Wrong number of index");
        }
    }


    public void removeNote(int noteNumber)
    {
        if (noteNumber < numberOfNotes()&&noteNumber>=0){
            System.out.println(notes.remove(noteNumber));
        }else{
            System.out.println("Wrong number of index");
    }
    }
}