Creating an iterator for my class

thatos

I designed a class called Row. This class has the following variable

Expand|Select|Wrap|Line Numbers

 
    private String country,city;

    private String connections[];

    private boolean sea_link;

    private int cumul,section;

I would like to write an iterator method which goes like this

Expand|Select|Wrap|Line Numbers

 
    public Iterator<Row> iterator(){

          return iterator;

    }

But I do not know how to go about doing this.Can someone pls help me, I do not know where to start.

thatos

I have the following contructor in my class

Expand|Select|Wrap|Line Numbers

 
  public Row(String country, String city,  int distPred, int distStart, String connections[]) {
 
      this.country = country;

      this.city = city;

      cumul = distStart;

      section = distPred;

      this.connections = connections;

The class Row records each row in a table

JosAH

Do you want to iterate over the connections? If not you can't iterate over one single row.

kind regards,

Jos

thatos

Quote:

Originally Posted by JosAH

Do you want to iterate over the connections? If not you can't iterate over one single row.

kind regards,

Jos

The is another class Table which is a collection of Rows and it implements Iterable<Row>, it has to contain this method

Expand|Select|Wrap|Line Numbers

 
public Iterator<Row> iterator() {
 
        return rows.iterator();
 
      }

JosAH

Quote:

Originally Posted by thatos

The is another class Table which is a collection of Rows and it implements Iterable<Row>, it has to contain this method

Expand|Select|Wrap|Line Numbers

 
public Iterator<Row> iterator() {
 
        return rows.iterator();
 
      }

If the "other class" is a real collection then you might already have your iterator.
Please elaborate.

kind regards,

Jos

thatos

Quote:

Originally Posted by JosAH

If the "other class" is a real collection then you might already have your iterator.
Please elaborate.

kind regards,

Jos

The other class is not a "real" collection.

JosAH

Quote:

Originally Posted by thatos

The other class is not a "real" collection.

Well then you have to duly implement the Iterator interface for that class. Read
the API documentation for the interface. hasNext() and next() are the two
methods that you have to implement yourself for your home brew collection class.
An inner class would do fine.

kind regards,

Jos

Creating an iterator for my class

re: Creating an iterator for my class

re: Creating an iterator for my class

re: Creating an iterator for my class

re: Creating an iterator for my class

re: Creating an iterator for my class

re: Creating an iterator for my class

Similar Java bytes

/bytes/development

/bytes/it

/bytes/about