I wrote a program that asks the user for four strings. Thereafter, derive the length of these four strings and store the lengths in an array. Next, I want to print out the lengths in sorted order to the terminal. Below is the program for this task 

#!/usr/bin/perl -w
use warnings;

print "Please enter first DNA sequence\n";
$firstDna = <STDIN>;

$frstLength = length($firstDna);

print "Please enter second DNA sequence\n";
$secondDna = <STDIN>;

$scndLength = length($secondDna);

print "Please enter third DNA sequence\n";
$thirdDna = <STDIN>;

$trdLength = length($thirdDna);

print "Please enter fourth DNA sequence\n";
$fourthDna = <STDIN>;

$frthLength = length($fourthDna);

@array = sort($frstLength, $scndLength, $trdLength, $frthLength);

print "Your Dna sequence length is: @array";

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I have 2 problems with this code first is it gives the length of the string but it also counts the enter key for example if i type a string of 6 characters it gives me the length 7. and second the order is not sorted although i have used to sort function for that. Please help me with this problem thank you in advance :)

In reply to Length of strings in an array by shabird

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