How do I sort a hash by the hash key?

Submitted by: Administrator
Suppose we have a class of five students.
Their names are kim, al, rocky, chrisy, and jane.

Here's a test program that prints the contents
of the grades hash, sorted by student name:

#!/usr/bin/perl -w

%grades = (
kim => 96,
al => 63,
rocky => 87,
chrisy => 96,
jane => 79,
);

print "ntGRADES SORTED BY STUDENT NAME:n";
foreach $key (sort (keys(%grades))) {
print "tt$key tt$grades{$key}n";
}


The output of this program looks like this:


GRADES SORTED BY STUDENT NAME:
al 63
chrisy 96
jane 79
kim 96
rocky 87



}
Submitted by: Administrator

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