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Question:
 What will the following expression evaluate to?
true && false

1.True

2.False

3.Error

4.None of the mentioned

Posted Date:-2022-02-07 13:13:08

More MCQS Questions and answers

  1. If expression. The expression can be of which type?
  2. What is the output of given code? string="I'am Learning RUBY Language".downcase string.upcase
  3. What is the output of the code? print "What's your first name?" first_name=gets.chomp a=first_name.capitalize first_name.capitalize! print "What's your last name?" last_name=gets.chomp b=last_name.capitalize last_name.capitalize! puts "My name is #{first_name} #{last_name}"
  4. What is the output of the given code? a = 5 b=10 while a <10 || b<20 puts a*b a+=2 b+=2 end
  5. What is the output of the given code? "Ruby Language".length = begin calculate length = end
  6. What is the output of the given code? a = 22.5 while a >11.5 puts a a-=3.5 end
  7. What is the output of the given code? a = 5 b=10 while a <10 && b<20 puts a*b a+=2 b+=2 end
  8. What is the output of the given code? Ans=Ruby puts "#[Ans] is an oop language"
  9. What is the output of the given code? my_string=Ruby puts(my_string)
  10. What is the range of octal notation ( nn)?
  11. What will be the output of the following? "Eric".irreverse
  12. What will be the output of the following? "Ruby".reverse.upcase
  13. What will be the output of the given code? boolean_1 = false || -10 > -9 puts boolean_1
  14. What will the following expression evaluate to? true && false
  15. Which of the following is a valid assignment operator?
  16. Which of the following is a valid boolean operator?
  17. Which of the following is supported by Ruby?
  18. Which of the following is the valid string method?
  19. Why do we use comments?
  20. For getting an input from the user which method is used?
  21. How to comment a single line?
  22. How to comment multiple lines in ruby?
  23. How to comment multiple lines in ruby? a)
  24. Objects of which class does the integer from the range -2^30 to 2^(30-1) belong to?
  25. What do we mean by expression substitution?
  26. What does %Q{ Learn ruby language } represents? a) ”
  27. What does %x!ls! represents?
  28. What does %{Learn ruby language} represents? a) “ b) “%{Learn Ruby language}” c) ” d) None of the mentioned
  29. What does the **= assignment operator do?
  30. What does the .upcase method do?
  31. What does the notataion  stands for?
  32. What is the extension used for saving the ruby file?
  33. What is the output of given code? puts "what is your first name?" name=gets.chomp puts "what is your surname?" surname=gets.chomp
  34. What is the output of the code? if 11<2 print "Eleven is less than two" end print "11 is greater"
  35. What is the output of the code? print "What's your first name?" first_name=gets.chomp a=first_name.capitalize first_name.capitalize! print "What's your last name?" last_name=gets.chomp b=last_name.capitalize last_name.capitalize puts "My name is #{first_name} #{last_name}"
  36. What is the output of the following? if 1<2 print "one is less than two" end
  37. What is the output of the following? "Iam learning ruby language".length
  38. What is the output of the given code? a = 5 b=10 while (a <10 || b<20)&&true puts a*b a+=2 b+=2 end
  39. What is the output of the given code? a= 5 b=10 while a <10 && b<20 puts a-b a+=2 b+=2 end
  40. What is the output of the given code? print "What's your first name?" first_name=gets.chomp a=first_name.capitalize a=a.reverse puts"My name is #{a}"
  41. What is the output of the given code? x, y, z = 12, 36, 72 puts "The value of x is #{ x }." puts "The sum of x and y is #{ x + y }." puts "The average was #{ (x + y + z)/3 }."
  42. What is the output of the given code? "Ruby Language".length =begin calculate length =end
  43. What is the output of the given code? a = 5 b=10 while a <10 && b<20 puts a+b a+=2 b+=2 end
  44. What is the output of the given code? a="string" b="strings" if(a==b) print ("a and b are same") else print "Not same" end
  45. What is the output of the given code? a=10 b=9 if(a>b) print ("a greater than b") else print "Not greater" end
  46. What is the output of the given code? Ans=Ruby puts "#{Ans} is an oop language" puts "It is very efficient langauge" puts "#{expr} is used on rails platform"
  47. What is the output of the given code? boolean_1 = 77<78 puts(boolean_1)
  48. What is the output of the given code? counter = -50 while counter <0 puts counter counter+=10 end
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  50. What is the output of the given code? counter = 100 while counter > 0 puts counter counter-=25 end
  51. What is the output of the given code? counter = 100 while counter > 0 puts counter counter/=5 end
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  54. What is the output of the given code? if(a==10 && b=9) print "true" else print "false" end
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