1. Methods can be overloaded with a difference only in the type of the return variable.   True   False   2. A method that is overridden in the subclass must retain the same return type and parameter list.   True   False   3. When a method or a variable in a class is declared as private, it can only be accessed by the methods within the same class.   True   False   4. A method declared as final can be overridden by subclasses if it is also declared as static.   True   False   5. A method in a class declared as static can only access static class members.   True   False   6. Each method in a class must have a unique name.   True   False   7. All interface methods must be declared as public when implemented in a class.   True   False