Java - How do I read data into a list using bufferedReader and Scanner?

Question

I have a class called Runner which looks like this:

public class Runner 
{
   private static int nextNumber= 1;

   private int number;       
   private String name;      
   private String ageGroup;  
   private int time;         


   public Runner()
   {
      super();
      this.name = "";
      this.ageGroup = "standard";
      this.time = 0;
      this.number = nextNumber++;
    }

It also includes standard getter and setter methods. In another class I am trying to write a method that reads in data from a text file and assigns the data to a list. My method currently looks like this:

   public void readInRunners()
   {
      String pathname = OUFileChooser.getFilename();
      File aFile = new File(pathname);
      Scanner bufferedScanner = null;
      List<Runner> runners = new ArrayList<>();

      try
      {
         String name;
         int age;
         String ageGroup;
         Scanner lineScanner;
         String currentLine;
         bufferedScanner = new Scanner(new BufferedReader(new FileReader(aFile)));

         while (bufferedScanner.hasNextLine())
         {
            currentLine = bufferedScanner.nextLine();
            lineScanner = new Scanner(currentLine);
            lineScanner.useDelimiter(",");
            name = lineScanner.next();
            age = lineScanner.nextInt();

            if(age < 18)
            {
               ageGroup = ("junior");
            }

            else if(age >= 55)
            {
               ageGroup = ("senior");
            }

            else if(age >= 18 && age < 55)
            {
               ageGroup = ("standard");
            }

            runners.add(new Runner(name, ageGroup));
         }
      }

      catch (Exception anException)
      {
         System.out.println("Error: " + anException);
      }

      finally
      {
         try
         {
            bufferedScanner.close();
         }
         catch (Exception anException)
         {
            System.out.println("Error: " + anException);
         }
      }

I am getting an error on this line:

runners.add(new Runner(name, ageGroup));

I know that is isn't compiling because of the incompatible argument but I'm unsure how to phrase this otherwise.

Any advice would be greatly appreciated.

Answer 1

I think that you should add a constructor

public Runner(String name, String age)
   {
     this.name = name,
     this.age= age;
   }

you have only empty constructor

public Runner(){// some code}

Answer 2

You need to have a parameterised constructor like in your runner class

public Runner(String name,String ageGroup)
   {
      this.name = name;
      this.ageGroup = ageGroup;
      this.time = 0;
      this.number = nextNumber++;
    }

Answer 3

Just add those arguments to the constructor in the runner class:

  public Runner(String name, String ageGroup)
   {
      super();
      this.name = name;
      this.ageGroup = ageGroup;
      this.time = 0;
      this.number = nextNumber++;
    }