w3resource

Ruby Array Exercises: Pick number of random elements from a given array

Ruby Array: Exercise-3 with Solution

Write a Ruby program to pick number of random elements from a given array.

Ruby Array Exercises: Pick number of random elements from a given array

Ruby Code:

nums = [12, 34, 23, 56]
print "Original array:\n"
print nums
print "\n 2 random elements from the array.\n"
print nums.sample(2)
print "\n 3 random elements from the array.\n"
print nums.sample(3)

Output:

Original array:
[12, 34, 23, 56]
 2 random elements from the array.
[34, 12]
 3 random elements from the array.
[56, 12, 34]

Flowchart:

Flowchart: Pick number of random elements from a given array

Ruby Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Ruby program to check whether 7 appears as either the first or last element in a given array. The array length must be 1 or more.
Next: Write a Ruby program to check whether first and the last element are the same of a given array of integers. The array length must be 1 or more.

What is the difficulty level of this exercise?