Ruby Programming Questions and Answers – Until Loop

This set of Ruby Programming Questions and Answers for Experienced people focuses on “Until Loop”.

1. The complement of while loop is until loop.
a) True
b) False
View Answer

2. What is the output of the given code?

counter = 1
until counter > 10
  puts counter
counter+=1 
  end

a) 1 2 3 4 5 6 7 8 9 10
b) 11 12 13 14 … infinite loop
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned
View Answer

Output:
1
2
3
4
5
6
7
8
9
10

3. What is the output of the given code?

counter = 0
until counter >= 10
  puts counter
counter+=1 
  end

a) 1 2 3 4 5 6 7 8 9 10
b) 11 12 13 14 … infinite loop
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned
View Answer

Output:
0
1
2
3
4
5
6
7
8
9

4. What is the output of the given code?

i = 3
while i > 0 do
  puts i
  i -= 1
end
 
j = 3
until j == 0 do
  puts j
  j -= 1
end

a) 1 2 3 1 2 3
b) 3 2 1 3 2 1
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned
View Answer

Output:
3
2
1
3
2
1

5. What is the output of the given code?

a="hungry"
until !a
puts "hungry"
a=!a
end

a) hungry
b) Nil
c) Error
d) None of the mentioned
View Answer

Output:
hungry

6. What is the output of the given code?

m= 8
loop do
    m += 2
    puts m
    break if m == 16
end

a) 10 12 14 16
b) Nil
c) Error
d) None of the mentioned
View Answer

Output:
10
12
14
16

7. What is the output of the given code?

m=0
loop do
    print "ruby"
    m+=1
    break if m==5
end

a) rubyrubyrubyrubyrubyruby
b) rubyrubyrubyrubyruby
c) Error
d) None of the mentioned
View Answer

Output:
rubyrubyrubyrubyruby

8. What is the output of the given code?

m=0
loop do
    puts m*10
    m+=1
    break if m==5
end

a) 0 10 20 30 40
b) 10 20 30 40 50
c) Error
d) None of the mentioned
View Answer

Output:
0
10
20
30
40

9. What is the output of the given code?

m=0
loop do
    puts 101
    m+=1
    break if m==5
end

a) 101 101 101 101 101
b) 10 20 30 40 50
c) Error
d) None of the mentioned
View Answer

Output:
101
101
101
101
101

10. What is the output of the given code?

m=5
loop do
    m-=1
    break if m==0
end

a) 1 2 3 4 5
b) 10 20 30 40 50
c) Error
d) Nil
View Answer

Output:
nil

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