Learning Encapsulation through Package

Q1. Which of these keywords is used to define packages in Java?
Q2. Which of these is a mechanism for naming and visibility control of a class and its content?
Q3. Which of this access specifies can be used for a class so that its members can be accessed by a different class in the same package?
Q4. Which of the following is correct way of importing an entire package ‘pkg’?
Q5.Which of the following is incorrect statement about packages?