Explore OOP in Ruby to gain a deeper understanding of Ruby objects, Ruby methods, and Ruby classes, enabling you to solve multiple problem sets with an object-oriented approach.

Become a Ruby Developer

Module Overview
Ruby is a smart, functional, and object-oriented programming language that blends the best features of scripting power with user-friendly syntax. In this module, we’ll dive into OOP in Ruby with hands-on practice using interactive exercises and illustrations. We'll start by creating and managing Ruby objects. Next, we’ll explore Ruby methods and blocks, essential tools in Ruby programming. Finally, we'll delve into Ruby classes and how they are used to implement OOP principles.

Ruby OOP (Object-Oriented Programming)

## Problem statement

You’re given a two-dimensional array of numbers as input. For each number in the array, output as many `*` symbols in the corresponding place.

### Example

Consider the following array:

```ruby
array = [
  [1, 2, 3],
  [2, 2, 2],
  [3, 2, 1]
]
```

# Problem statement

You’re given a two-dimensional array of numbers as input. For each number in the array, output as many `*` symbols in the corresponding place.

## Example

Consider the following array:

```ruby
array = [
  [1, 2, 3],
  [2, 2, 2],
  [3, 2, 1]
]
```

Print a specific output based on an input nested array.

Objects

Blocks

Conditionals

Writing Classes

Mini project 1

Conclusion

Exercise 4: Print the Output Using Nested Arrays

Problem statement