Case-statements-quiz

Case Statements Quiz

Objectives

1. Distinguish a case statement from other patterns

2. Identify when to use a case statement

3. Write a case statement

Note: If you see concepts in the quiz that you might not have seen before, then Google it. Knowing how to look for information is an important part of being a good programmer so we're not going to always give you everything you need to figure out a problem; some of it will be on you.

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Quiz

?: Which of the following is a case statement?

( )

name = "Steven"

if name == "Steven"
  "Hi, #{name}"
else
  puts "Hi, stranger!"

(X)

name = "Steven"

case name
  when "Steven"
    puts "Hi, #{name}"
  when "Amanda"
    puts "Welcome back, #{name}"
  when "Admin"
    puts "You have all the power!"
  end

( )

def case
  puts "Am I a case statement?"
end

case

?: Of the following two examples, which example uses the case statement the best?

( )

name = "Steven"

case name
  when "Steven"
    puts "Hi, #{name}"
  when "Amanda"
    puts "Welcome back, #{name}"
  when "Admin"
    puts "You have all the power!"
end

( )

grade = 95

case grade
  when 90..100
    "A" 
  when 80..90
    "B"
  when 70..80
    "C"
  when 60..70
    "D"
  when 0..60
    "F"
end

(X) Both are good as case statements

?: Which operator does a case statement use to compare the value to the conditions?

(X) === ( ) == ( ) =

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