Ruby program to call a superclass constructor from sub-class using the super() method

Last Updated : December 15, 2025

Problem Solution

In this program, we will implement single inheritance using the "<" operator and call the superclass constructor from the sub-class using the super() method.

Program/Source Code

The source code to call the superclass constructor from the sub-class using the super() method is given below. The given program is compiled and executed successfully.

# Ruby program to call a superclass constructor 
# from sub-class using super() method

class SuperClass
	def initialize
		puts "SuperClass constructor";
	end
end

class SubClass < SuperClass
	def initialize
	    super();
	    puts "SubClass constructor";
	end
end

subObj = SubClass.new;

Output

SuperClass constructor
SubClass constructor

Explanation

In the above program, we created two classes SuperClass, SubClass. We inherited SuperClass into SubClass. And, we used the super() method to call the superclass constructor from the subclass and printed appropriate messages.

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