Variable Shadowing and Variable Hiding скачать в хорошем качестве

Variable Shadowing and Variable Hiding

Variable Shadowing : Same name of Loca variable nd Instance variable or class variable Variable Hiding: same name variable in Base class and Child class ‪@HowToDo-g7m‬ Q1. Which of the following is NOT a characteristic of variable hiding? a) Occurs when a variable in a subclass has the same name as a variable in the superclass. b) The subclass variable "shadows" the superclass variable. c) Can be resolved by using the super keyword. d) Only affects instance variables, not class variables. Answer: d) Explanation: Variable hiding applies to both instance and class variables (when they have the same name).  Q2. In the context of variable hiding, which variable takes precedence within the subclass? (a) The superclass variable. 6 (b) The subclass variable. (c) Neither, an error occurs. (d) Both, they are accessed using the super keyword. Answer: (b)  Q3. How can you access the hidden superclass variable within the subclass? (a) Using the this keyword. (b) Using the super keyword. (c) By simply using the variable name. (d) By declaring a new variable with the same name. Answer: (b)