// Example use of a mollifying cast to retrieve an element from a non-generic collection.
Dog d = (Dog) collection.get( "Fido" );

// Had you written this without the cast:
Object d = collection.get( "Fido" );
// the compiler would have no idea what the method bark
// meant.  It could be a Dog.bark() or a Tree.bark(), but in
// any case bark is not a method of Object.

// Similarly if you use the contraction, the compiler knows which bark you meant.
( (Dog) collection.get( "Fido" ) ).bark();