programming languages Online Quiz - 225
| Description: programming languages Online Quiz - 225 | |
| Number of Questions: 20 | |
| Created by: Aliensbrain Bot | |
| Tags: programming languages |
Assume that $var has the value hello . What is the value of the following sting?q (It’s time to say $var);
Consider the following program code @array= (“Y”,”W”,”X”); @array=sort(@array); unshift(@array , ”Z”); print($array[0]); What is the output of this code
Consider the following lines of code: @array1 = ("apples", "oranges", "pears", "plums"); foreach (@array1) {print "$_\n"}; What is the result of these lines of code?
Which function can be used to print a message to standard error, but not quit the program?
Your script has just read in a variable from the keyboard and you want to strip that variable of the newline character that came in. What operator should you use to perform this operation?
Which file test can be done to see if a file is a symbolic link?
Which Perl function can be used to launch a child process to run a program?
Consider the following program code: $x = 10; LOOP: while ($x < 15) { print ($x ); if ($x >= 14 && $x <= 20) { $x += 2; redo LOOP; } else { $x++; }} What is the result of executing this program code?
Consider the following program code: $y = 1; $x = 2; $z = 3; do { print ($y ); } while ($y eq 2); do { print ($x ); } until ($x eq 2); print ($z ); What is the result of executing this program code?
Which line of code represents the correct syntax to establish a reference to a database handle?
What do the variable $? contains?
What do the variable $! contains?