How to Convert a Set of Integers to a Set of Strings in Ruby - Step by Step Examples

How to Convert a Set of Integers to a Set of Strings in Ruby ?

Answer

To convert a set of integers to a set of strings in Ruby, you can use the `map` method provided by the `Set` class from the `set` library.


✐ Examples

1 Convert Set of Single-Digit Integers to Set of Strings

In this example,

  1. First, include the `set` library in your program by using the `require 'set'` statement to access the `Set` class.
  2. Create a set named `integers` containing single-digit integers `1`, `2`, `3`, `4`, and `5` using `Set.new([1, 2, 3, 4, 5])`.
  3. Use the `map` method on the `integers` set to convert each integer to its string representation. The statement `string_set = integers.map { |num| num.to_s }` iterates through each element in the set and applies the `to_s` method to convert the integer to a string.
  4. The result of the `map` method is an array of strings, so we convert this array back to a set by using `Set.new(string_set)`, which creates a new set containing the string representations of the integers.
  5. Assign the new set to the variable `string_set` to store the result.
  6. Print the `string_set` using the `puts` statement to display the converted set.

Ruby Program

require 'set'

# Creating a set with single-digit integers
integers = Set.new([1, 2, 3, 4, 5])

# Converting each integer to a string and creating a new set
string_set = Set.new(integers.map { |num| num.to_s })

# Printing the set after conversion
puts "Set of strings: #{string_set.to_a}"

Output

Set of strings: ["1", "2", "3", "4", "5"]

2 Convert Set of Multi-Digit Integers to Set of Strings

In this example,

  1. First, make sure to require the `set` library using the `require 'set'` statement to access the `Set` class.
  2. Create a set named `integers` containing multi-digit integers `10`, `20`, `30`, `40`, and `50` using `Set.new([10, 20, 30, 40, 50])`.
  3. Use the `map` method on the `integers` set to convert each integer to its string representation. The statement `string_set = integers.map { |num| num.to_s }` iterates through each element in the set and applies the `to_s` method to convert the integer to a string.
  4. The result of the `map` method is an array of strings, so we convert this array back to a set by using `Set.new(string_set)`, which creates a new set containing the string representations of the integers.
  5. Assign the new set to the variable `string_set` to store the result.
  6. Print the `string_set` using the `puts` statement to display the converted set.

Ruby Program

require 'set'

# Creating a set with multi-digit integers
integers = Set.new([10, 20, 30, 40, 50])

# Converting each integer to a string and creating a new set
string_set = Set.new(integers.map { |num| num.to_s })

# Printing the set after conversion
puts "Set of strings: #{string_set.to_a}"

Output

Set of strings: ["10", "20", "30", "40", "50"]

3 Convert Set of Mixed Integers to Set of Strings

In this example,

  1. First, include the `set` library in your program by using the `require 'set'` statement to access the `Set` class.
  2. Create a set named `integers` containing a mix of single and multi-digit integers `1`, `22`, `333`, `4444`, and `55555` using `Set.new([1, 22, 333, 4444, 55555])`.
  3. Use the `map` method on the `integers` set to convert each integer to its string representation. The statement `string_set = integers.map { |num| num.to_s }` iterates through each element in the set and applies the `to_s` method to convert the integer to a string.
  4. The result of the `map` method is an array of strings, so we convert this array back to a set by using `Set.new(string_set)`, which creates a new set containing the string representations of the integers.
  5. Assign the new set to the variable `string_set` to store the result.
  6. Print the `string_set` using the `puts` statement to display the converted set.

Ruby Program

require 'set'

# Creating a set with mixed integers
integers = Set.new([1, 22, 333, 4444, 55555])

# Converting each integer to a string and creating a new set
string_set = Set.new(integers.map { |num| num.to_s })

# Printing the set after conversion
puts "Set of strings: #{string_set.to_a}"

Output

Set of strings: ["1", "22", "333", "4444", "55555"]

Summary

In this tutorial, we learned How to Convert a Set of Integers to a Set of Strings in Ruby language with well detailed examples.


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