Methods in Ruby MCQ question and answer with solution

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Which of the following is used to define a class method in Ruby?

A) def self.method_name B) method method_name C) class method_name D) def method_name

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Answer & Solution

Answer: Option A

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What is the purpose of the `attr_accessor` method in Ruby?

A) Defines both reader and writer methods for instance variables B) Defines a reader method for instance variables C) Defines a writer method for instance variables D) None of the above

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Answer: Option A

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In Ruby, which method is called automatically when an object is created?

A) initialize B) constructor C) create D) None of the above

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Answer & Solution

Answer: Option A

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What does the def keyword signify in Ruby?

A) Declares a method B) Declares a class C) Declares a variable D) Declares a module

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Answer & Solution

Answer: Option A

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In Ruby, which keyword is used to call a method?

A) call B) method C) execute D) invoke

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Answer & Solution

Answer: Option D

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What does the return keyword do in Ruby methods?

A) Exits the method B) Returns a value C) Jumps to the next iteration of the loop D) Resets the method

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Answer & Solution

Answer: Option B

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What is the purpose of the initialize method in Ruby classes?

A) To initialize class variables B) To define instance variables C) To define class methods D) To define instance methods

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Answer & Solution

Answer: Option A

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Which of the following is NOT a valid method definition syntax in Ruby?

A) def method_name; end B) define method_name; end C) define_method(:method_name) { }; end D) def self.method_name; end

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Answer: Option B

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What is the result of calling a method in Ruby without parentheses?

A) Error B) Returns nil C) Returns the method itself D) Executes the method

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Answer & Solution

Answer: Option D

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In Ruby, which method is used to define a getter and setter for an instance variable?

A) get_set B) attr C) read_write D) instance

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Answer & Solution

Answer: Option B

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Methods in Ruby MCQ question and answer with solution | Ruby Programming MCQs