Find the error(s) in the following code. The rectangleArray is an instance variable of type ArrayList, which contains MyRectangle objects.

Question

```
1 private void paintComponent( Graphics g )
2 {
3 superclass.paintComponent( g );
4 Iterator traverse = rectangleArray.iterator();
5
6 while ( traverse.hasMoreElements() )
7 {
8 MyRectangle currentRectangle = ( MyRectangle ) traverse.next();
9 currentRectangle.drawMyRectangle( g );
10
11 } // end while
12
13 } // end method paintComponent
```

Answer 1

To call the paintComponent method of the superclass, use keyword super. Also, in the while loop, to determine if there are remaining objects in the rectangleArray, use the hasNext method as opposed to the hasMoreElements method.
```
1 private void paintComponent( Graphics g )
2 {
3 super.paintComponent( g );
4 Iterator traverse = rectangleArray.iterator();
5
6 while ( traverse.hasNext() )
7 {
8 MyRectangle currentRectangle = ( MyRectangle ) traverse.next();
9 currentRectangle.drawMyRectangle( g );
10
11 } // end while
12
13 } // end method paintComponent
```