Back-End Programming Exam > Back-End Programming Videos > Introduction to Coding with Ruby (in Hindi) > Ruby Programming Tutorial-17-Getter And Setter
Ruby Programming Tutorial-17-Getter And Setter Video Lecture | Introduction to Coding with Ruby (in Hindi) - Back-End Programming
FAQs on Ruby Programming Tutorial-17-Getter And Setter Video Lecture - Introduction to Coding with Ruby (in Hindi) - Back-End Programming
| 1. What are getters and setters in Ruby? |  |
Ans. Getters and setters are methods in Ruby that are used to access and modify the values of instance variables of an object. Getters retrieve the value of an instance variable, while setters modify the value of an instance variable.
| 2. How do you define a getter method in Ruby? | |
Ans. In Ruby, a getter method can be defined using the attr_reader keyword. This keyword automatically creates a method that returns the value of the specified instance variable.
| 3. How do you define a setter method in Ruby? | |
Ans. In Ruby, a setter method can be defined using the attr_writer keyword. This keyword automatically creates a method that sets the value of the specified instance variable.
| 4. Can getters and setters have different names in Ruby? | |
Ans. Yes, in Ruby, getters and setters can have different names. By convention, the getter method has the same name as the instance variable it retrieves the value from, while the setter method has the same name as the instance variable but with an equal sign (=) appended to it.
| 5. Can you manually define getters and setters in Ruby without using attr_reader and attr_writer? | |
Ans. Yes, you can manually define getters and setters in Ruby without using attr_reader and attr_writer. To define a getter, you can create a method that returns the value of the instance variable, and to define a setter, you can create a method that takes a parameter and assigns it to the instance variable. However, using attr_reader and attr_writer provides a more concise and convenient way to define getters and setters.
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Dec 23, 2024 Last updated |
Video Description: Ruby Programming Tutorial-17-Getter And Setter for Back-End Programming 2024 is part of Introduction to Coding with Ruby (in Hindi) preparation.
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