Sorted:

How to use Instruments to determine part of the code that crashes-Collection of common programming errors

How to use an IBOutletCollection of switches?-Collection of common programming errors

problem about default-arguments-Collection of common programming errors

problem about static-cast-Collection of common programming errors

Why can't I define a static method in a Java interface?-Collection of common programming errors

problem about shadowing-Collection of common programming errors

Overloading is compile-time polymorphism. Really?-Collection of common programming errors

How do I get my netbeans drag and drop widget to know whether it is rendering inside the netbeans design view window or the running application?-Collection of common programming errors

What's the purpose of META-INF?-Collection of common programming errors

How can I call a generic method on an injected class without informing the parent class of the generic type?-Collection of common programming errors