Jian Shen

Hi,

The code looks fine except the sort method call:
//Sort method call sort(double num1, double num2, double num3);

You need to declare variable type only when define a method. So the calling code should be:
//Sort method call sort(num1, num2, num3);

Campbell Ritchie wrote:Jian Shen, welcome to the Ranch

Thanks Campbell.

I do not quite understand. Does the following code describe the situation:

abstract class Fruit { } class Apple extends Fruit { private String name; public Apple(String name) { this.name = name; } } class Orange extends Fruit { private int size; public Orange(int size) { this.size = size; } } class Inventory { private List<Fruit> stock = new ArrayList<Fruit>(); public void putFruit(Fruit fruit) { stock.add(fruit); } }