Ruby: I/O

Question 1

How do you create a new file?

Answer 1

Ruby has a built in class called File. So it follows the same rules as creating an instance of a class. For example:

(instance of a class)
class Person
end

person = Person.new(“James”)

Example for file:

file = File.new(“filename”, “r”)

r* is example

Question 2

mode strings: read

Answer 2

r

Question 3

mode string: write

Answer 3

w

Question 4

mode string: read and write

Answer 4

r+