Ruby program to print the length of the hash collection

Program/Source Code:

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

# Ruby program to print the length 
# of hash collection

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

print "Length of collection: ",student.length();

Output:

Length of collection: 3

Explanation:

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