Tag: programming languages

Questions Related to programming languages

Other name of Struts 2 was
technology programming languages

  1. WorkWeb 2

  2. WebWork 2

  3. Jstruts 2

  4. None of the above

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Correct Option: B

In Struts 1.1, you can change how Struts populates a form by

technology programming languages

  1. Overriding the populateBean method of the ActionMapping

  2. Overriding the processPopulate method of the Request Processor

  3. Overriding the populate method of the ActionForm

  4. None of the above

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Correct Option: B

Consider the following program code @array= (“Y”,”W”,”X”); @array=sort(@array); unshift(@array , ”Z”); print($array[0]); What is the output of this code
technology programming languages

  1. W

  2. X

  3. Y

  4. Z

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Correct Option: D

Suppose the variable $var has the value abc123abc . What is the value of $var after the following substitution? $var=~ s/(\d+)/ $1*2 /e ;
technology programming languages

  1. “abc”

  2. It will produce error

  3. “ABC123ABC”

  4. ”abc246abc”

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Correct Option: D

Which Perl function can be used to identify the first found occurrence of a substring?
technology programming languages

  1. find

  2. index

  3. locate

  4. allocate

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Correct Option: B

Assume that $var has the value hello . What is the value of the following sting? q (It’s time to say $var);
technology programming languages

  1. It’s time to say $var

  2. It’s time to say hello

  3. Both

  4. None

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Correct Option: A

If $string contains abcdefghijiklmdef , what will the following call return? rindex($string , "def", 11 );

technology programming languages

  1. 14

  2. 3

  3. 4

  4. 15

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Correct Option: B

Consider the following lines of code: @array1 = ("apples", "oranges", "pears", "plums"); foreach (@array1) {print "$_\n"}; What is the result of these lines of code?
technology programming languages

  1. applesorangespearsplums

  2. apples oranges pears plums

  3. apples

  4. apples oranges pears plums

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Correct Option: D

Consider the following program code: %hash = (small => 8oz, medium => 16oz, large => 32oz); @keys = sort(keys(%hash)); for ($i = 0; $i < 3; $i++) { print($hash{$keys[$i]}\n); } What is the result of executing this program code?
technology programming languages

  1. The code will fail at line 1 because a hash cannot contain both numeric and string data.

  2. The code will execute without error but will output nothing.

  3. The code will output the following:32oz 16oz 8oz

  4. The code will output the following:large medium small

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Correct Option: C

Assume @list contains (“1”, “2”, “3”, “4”, “5” ). What is the content of @list after the following statement splice (@list, -1, 1, “test1”. “test2”);
technology programming languages

  1. (“1”, “2”, “3”, “4”, “test1”, “test2”)

  2. ( “2”, “3”, “4”, “test1”, “test2”)

  3. (“1”, “3”, “4”, “test1”, “test2”)

  4. (“1”, “test1”, test2”, “2”, “3”, “4” )

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Correct Option: A