java Programming Glossary: abstractthing
Why an abstract class implementing an interface can miss the declaration/implementation of one of the interface's methods? http://stackoverflow.com/questions/197893/why-an-abstract-class-implementing-an-interface-can-miss-the-declaration-impleme without a warning or an error public abstract class AbstractThing implements IAnything public void m1 public void m3 Can you explain.. out. Following your example code try making a subclass of AbstractThing without implementing the m2 method and see what errors the compiler..
Nested generic in a generic class http://stackoverflow.com/questions/4452158/nested-generic-in-a-generic-class provide something like this in my api class Foobar extends AbstractThing Double class EventThing Foobar public Foobar getSource public.. Double getValue So I write this class EventThing T extends AbstractThing U public T getSource public U getValue But java can not resolve.. But java can not resolve the U . With EventThing T extends AbstractThing U U instead it works but the second U is actually redundant..
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