Do you know when self.up and self.down method is used?

1

Explain retry statement in ruby.

1

What are the three levels of method access control for classes and what do they signify? What do they imply about the method?

5

How to read a file in Ruby?

5

Mention what is the difference between a gem and a plugin in ruby?

5

How to create a new time instance in Ruby?

3

How to use ruby methods.

1

How do the following methods differ: @my_string.strip and @my_string.strip! ?

5

What is the difference between extend and include?

1

Name some operators used in ruby.

1

Which ruby interpreter option enables debugging?

5

Please explain each of the following operators and how and when they should be used: ==, ===, eql?, Equal?

1

Why Ruby is known as a language of flexibility?

5

Where does a scope change in a ruby program?

5

How to create ruby object?

1