x : integer –– global procedure set x(n : integer) x := n procedure print x write integer(x) procedure first set x(1) print x procedure second x : integer set x(2) print x set x(0) first() print x second() print x What does this program print if the language uses static scoping? What does it print with dynamic scoping? Explain your answers.

Which of the following statements is false? a. a class can directly inherit from class object. b. if the class you're inheriting from declares instance variables as private, the inherited class can access those instance variables directly. c. a class's instance variables are normally declared private to enforce good software engineering. d. it's often much more efficient to create a class by inheriting from a similar class than to create the class by writing every line of code the new class requires.