Tag: programming languages

Questions Related to programming languages

The printf format "%6.2f" displays a number
technology programming languages

  1. At least six columns wide in total, with two figures after the decimal place

  2. Exactly six digits before the decimal place, and two digits after

  3. At least six digits before the decimal place, and two digits after

  4. Exactly six columns wide in total, with two figures after the decimal place

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Correct Option: C

In Perl, which of the following are file handles?
technology programming languages

  1. stdquit

  2. stdend

  3. stdin

  4. stdout

  5. c&d

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Correct Option: E

$val = 'a\b\n';print $val;What gets printed?
technology programming languages

  1. ab(newline)

  2. a\b(newline)

  3. a\b\n

  4. a\b(newline)

  5. a\b\n

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Correct Option: C

my $txt = 'I am learning Perl'; $txt =~ /(\w+)$/; What is value of $txt?
technology programming languages

  1. Perl

  2. I

  3. I am learning Perl

  4. undef

  5. empty string

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Correct Option: C

Which of the following is NOT a comment line in a Perl program?
technology programming languages

  1. This is a comment

  2. #! This is a comment

  3. Comment Line

  4. ##########################################################

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Correct Option: B

Which of the following is used in perl?
technology programming languages

  1. else if

  2. elseif

  3. elsif

  4. elif

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Correct Option: C

Which of the above is valid variable name?
technology programming languages

  1. $_4x

  2. $10thLine

  3. $line.No

  4. count

  5. $lineNo!

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Correct Option: C

which one of the below is correct with respect to string repeatation a) print "TEST" X 10; b) print "TEST" x 10; c) print 10 X "TEST"; d) print 10 x "TEST";
technology programming languages

  1. a

  2. b

  3. c

  4. d

  5. b and d

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Correct Option: B

What will be the value of $keys? my %hash; $hash{undef} = undef; $hash{''} = ''; my $keys = keys(%hash);
technology programming languages

  1. undef

  2. 0

  3. 1

  4. 2

  5. the code is ill-formed

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Correct Option: D

which is among the following is not a loop a) For b) foreach c)map d) until e) switch
technology programming languages

  1. a

  2. b

  3. c

  4. d

  5. e

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Correct Option: E