public class SimpleCollectionDemo {
public static void main(String[] args) {
SimpleCollection simpleCollection =
new SimpleCollection();
simpleCollection.add(new Foo1("一號 Foo1"));
simpleCollection.add(new Foo2("一號 Foo2"));
Foo1 f1 = (Foo1) simpleCollection.get(0);
f1.showName();
Foo2 f2 = (Foo2) simpleCollection.get(1);
f2.showName();
}
}