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Ruby program to get the size of the hash collection

Last Updated : December 15, 2025

Problem Solution

In this program, we will create a hash collection. Then we will get the size of the hash collection using the size() method and print the result.

Program/Source Code

The source code to get the size of the hash collection is given below. The given program is compiled and executed on Windows 10 Operating System successfully.

# Ruby program to get the size 
# of hash collection

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

print "The size of hash collection: ",student.size();

Output

The size of hash collection: 3

Explanation

In the above program, we created a hash collection to store student information. Then we got the size of the hash collection using the size() method and printed the result.

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