Back-End Programming Exam > Back-End Programming Videos > Introduction to Coding with Ruby (in Hindi) > Ruby Programming Tutorial-16-Class ; Variable And Object
Ruby Programming Tutorial-16-Class ; Variable And Object Video Lecture | Introduction to Coding with Ruby (in Hindi) - Back-End Programming
FAQs on Ruby Programming Tutorial-16-Class ; Variable And Object Video Lecture - Introduction to Coding with Ruby (in Hindi) - Back-End Programming
| 1. What is a class in Ruby programming? |  |
Ans. In Ruby programming, a class is a blueprint or a template that defines the properties and behaviors of an object. It serves as a blueprint for creating objects with similar characteristics.
| 2. What is the difference between a variable and an object in Ruby programming? | |
Ans. In Ruby programming, a variable is a name that represents a value or an object. It acts as a reference to the object stored in memory. On the other hand, an object is an instance of a class that holds data and behaviors defined by the class.
| 3. How do you define a class in Ruby programming? | |
Ans. To define a class in Ruby, you use the 'class' keyword followed by the class name. For example, to define a class named 'Person', you would write:
```
class Person
# class body
end
```
| 4. What are instance variables in Ruby programming? | |
Ans. Instance variables in Ruby programming are variables that belong to an instance of a class. They are prefixed with the '@' symbol and can be accessed and modified within the instance methods of the class. Each instance of the class has its own set of instance variables.
| 5. How are objects created in Ruby programming? | |
Ans. In Ruby programming, objects are created by calling the 'new' method on a class. This initializes a new instance of the class and returns it as an object. For example, to create an object of the 'Person' class, you would write:
```
person = Person.new
```
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Nov 22, 2024 Last updated |
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