1. Methods can be overloaded with a difference only in the type of the return variable.   True   False   2. A method in a class declared as static may be invoked simply by using the name of the method alone.   True   False   3. A method in a class declared as static can only access static class members.   True   False   4. Each method in a class must have a unique name.   True   False   5. A static method can refer to any instance variable of the class.   True   False   6. Java does not allow a method with the same signature in a subclass, as a method in the super class.   True   False   7. 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