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Ruby program to check a hash collection is empty or not

Last Updated : December 15, 2025

Problem Solution

In this program, we will create a hash collection. Then we will check a collection is empty or not using empty?() method.

Program/Source Code

The source code to check a hash collection is empty or not is given below. The given program is compiled and executed on Windows 10 Operating System successfully.

# Ruby program to check a hash collection 
# is empty or not

hash1 = {"101" => "Amit", "102" => "Arun", "103" => "Sumit"};
hash2 = {};

if hash1.empty?() == true
    puts "hash1 collection is empty";
else
    puts "hash1 collection is not empty";
end

if hash2.empty?() == true
    puts "hash2 collection is empty";
else
    puts "hash2 collection is not empty";
end

Output

hash1 collection is not empty
hash2 collection is empty

Explanation

In the above program, we created two hash collections. Then we checked created collections are empty or not using empty?() method and printed the appropriate message.

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