Ruby Programming Questions and Answers – The Unless Conditional Statement

This set of Ruby Programming Interview Questions and Answers for freshers focuses on “The Unless Conditional Statement”.

1. Syntax for unless conditional statement is

unless conditional [then]
   code
else
   code 
end

a) True
b) False
View Answer

2. What is the output of the given code?

x=3
unless x>2
puts "x is less than 2"
else
puts "x is greater than 2"
end

a) x is greater than 2
b) x is less than 2
c) 3
d) None of the mentioned
View Answer

Output: 
x is greater than 2

3. What is the output of the given code?

var =  1
print "1 -- Value is set\n" if var
print "2 -- Value is set\n" unless var
var = false
print "3 -- Value is set\n" unless var

a) 1–Value is set
b) 2–Value is set
c) 1–Value is set
2–Value is set
d) 1–Value is set
3–Value is set
View Answer

Output:
   1--Value is set
   3--Value is set

4. What is the output of the given code?

hungry=false
unless hungry
 print "Not hungry"
else
 print "Hungry"
end

a) Not hungry
b) Hungry
c) Syntax error
d) None of the mentioned
View Answer

Output:
Not hungry

5. The following syntax is also used for unless conditional statement.

code unless conditional

a) True
b) False
View Answer

6. What is the output of the given code?

counter=12
unless counter
 print counter+1
else
 print counter+2
end

a) 13
b) 14
c) 15
d) None of the mentioned
View Answer

Output:
14

7. What is the output of the given code?

unless true && false
print "false"
else 
    print "ruby"
end

a) True
b) False
c) Nil
d) Syntax error
View Answer

Output:
false

8. What is the output of the given code?

print "2 is less than 3" unless 2>3

a) 2>3
b) 2 is less than 3
c) Syntax error
d) None of the mentioned
View Answer

Output:
2 is less than 3

9. What is the output of the given code?

x=8
y=10
unless x>y
puts "x is less than y"
end
unless x>y+1
puts "x is less than y+1"
end

a) x is less than y
b) x is less than y+1
c) x is less than y
x is less than y+1
d) None of the mentioned
View Answer

Output:
x is less than y
x is less than y+1

10. What is the output of the given code?

x="ruby".length
y="language".length
puts x,y
unless x>y 
print "length of x is less than that of y"
end

a)4
8
b)4
8
length of x is less than that of y
c) Syntax error
d) None of the mentioned
View Answer

Output:
4
8
length of x is less than that of y

11. What is the output of the given code?

x=8
y=10
unless x<y
puts "x is less than y"
end
unless x>y+1
puts "x is less than y+1"
end

a) x is less than y
b) x is less than y+1
c) x is less than y
x is less than y+1
d) None of the mentioned
View Answer

Output:
x is less than y+1

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