How are single-line commented in Perl?

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Question:
How are single-line commented in Perl?

1.! Comment goes here

2.<-- Comment goes here -->

3.# Comment goes here

4.// Comment goes here

Posted Date:-2022-01-19 00:17:27

More MCQS Questions and answers

  1. ___ function is used for joining lists.
  2. <ARGV>
  3. In Perl, "stat" returns a thirteen element array with which of the following values?
  4. In Perl, scalar variables always begin with a ________ sign.
  5. perl is ____ of grep, tr, sed and awk.
  6. Perl is:
  7. The "%" operator returns:
  8. What is a file handle used for?
  9. . The $_ variable
  10. . What will be printed by the code below? my @a = (0, 1, 2); my $b = @a; print $b;
  11. $x = @y[2 .. 4] assigns$x the third, fourth and fifth elements of the y array concatenated together.
  12. CGI is a programming language.
  13. For looping in a list, ____ is used.
  14. For splitting a line or expression into fields, __ is used.
  15. How are multi-line commented in Perl?
  16. How are single-line commented in Perl?
  17. I want to write an appointment manager program for Microsoft Windows users. It must have a GUI, it must be very fast, and it depends on special GUI features found on only Microsoft Windows. What is the best language for the job?
  18. In Perl, a/n ________ is a special character or a sequence that will define the number of times the previous character or sequence appears.
  19. In Perl, the following will result in which of the following, if the prize is currently "5 dollars" print 'You won $prize';
  20. In Perl, which of the following are file handles?
  21. In Perl, which switch is used for printing out warnings about typographical errors in your script?
  22. perl also supports use of for loop in the following manner. for($i=0;$i<3;$i++){ }
  23. Perl scripts are text files.
  24. Perl was first released in:
  25. PONIE is an acronym for?
  26. The following will display : perl -e ‘print “UNIX” x 10 . “ ” ;’
  27. The printf format "%6.2f" displays a number …
  28. The shebang line is _______
  29. The statement open (FH,"abc.txt");
  30. The value of the expression $yards += 10
  31. There is another popular scripting language called Python. Like Perl, it reads and runs scripts in one step instead of compiling them ahead of time. What would I need on my computer to use Python?
  32. What is Perl?
  33. What is the result of this script: $a = "This is Perl"; $b="This is Perl "; chomp($a); chomp($b);?
  34. What output will be generated by this statement: print("Hello world This is Perl ");?
  35. What will be printed by the code below? 58% on 4261 times asked my $val = 'x'; print ref($val);
  36. What will be printed by the code below? my $val = {}; print ref($val);
  37. What will be the value in the variable $a after these two statements: $a = "Hello"; $a = "world";?
  38. When you create a variable, you may assume it starts off containing:
  39. When you're pattern matching, you describe the pattern using:
  40. Which among the following statements are true with respect to Perl? S1: Perl is procedural in nature S2: Perl do automatic data-typing S3: All variables are marked with leading sigils
  41. Which are the permitted file extensions of perl?
  42. Which brackets do you use to change the order of precedence of operations?
  43. Which keyword can be used instead of print to have the carriage return added automatically? (v5.10 or higher)
  44. Which of the following commands will turn a scalar ($str)into an array of characters?
  45. Which of the following tests if the string held in $qn includes the word "perl"?
  46. Which of these is NOT available for Perl:
  47. Which option can be used to use perl on the command line?
  48. Which statement enables Plain Old Documentation?
  49. Which symbol is owned by the Perl Foundation?
  50. Who designed and developed Perl?
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