Jdk 1.5

I am copying a small snippet from generics..

static void fromArrayToCollection(Object[] a, Collection<?> c) {

for (Object o : a) {

c.add(o); // Compile time error

}

}

Rule 1

In the tutorial they are saying that "We can call this method with any kind of collection whose element type is a supertype of the element type of the array."

Rule 2

But In the same tutorial they are saying that Collection<Object> will not accept a <String > since both are different ....

I am totally confused about the two statements. How does the first code snippet confirms to rule 2?

[648 byte] By [Bulla] at [2007-10-3 4:41:01]