How to implement iterator as an attribute of a class in Java

Question

let\'s say I have this simple MyArray class, with two simple methods: add, delete and an iterator. In the main method we can see how it is supposed to be used:

Answer 1

In my opinion it is better to implement MyArray as common Iterable object, so it can be used in a for statement.

My suggestion:

/**
 * My array
 */
public class MyArray implements Iterable
{
    /**
     * Internal used iterator.
     */
    private class MyArrayIterator implements Iterator
    {
        private MyArray _array;

        /**
         * @param array The underlying array.
         */
        public MyArrayIterator(MyArray array)
        {
            this._array = array;
        }

        /**
         * Gets the underlying array.
         * 
         * @return The underlying array.
         */
        public MyArray getArray() {
            return this._array;
        }

        @Override
        public boolean hasNext() {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public TItem next() {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public void remove() {
            // TODO Auto-generated method stub

        }

    }

    public void add(int el){
        // do add
    }

    public void delete(){
        // do delete
    }

    @Override
    public Iterator iterator() {
        // TODO Auto-generated method stub
        return new MyArrayIterator(this);
    }
}

As I said you can use it in a for statement:

private static void test(MyArray strArray)
{
    for (String str: strArray) {
        // do something
    }
}