A class invariant is a condition that defines all valid states for an object. It is a logical condition to ensure the correct working of a class. Class invariants must hold when an object is created, and they must be preserved under all operations of the class. In particular all class invariants are both preconditions and post-conditions for all operations or member functions of the class.
Write a script to reverse a string without using Perls built in function?
Sort a word "system" in perl/shell without using built in functions output should be emssty?
How to find a substring in a string without using substr built in functions, and print the substring found?
What is the difference between having a parenthesis after module name and without parenthsis after module name?i.e PackageModule();and PackageModule;
What is the meaning of rigging?
Why do you use only Perl when there a lot of more languages available in market like C, Java?
Why we use "use lib $path"?
Difference between Perl and Mod_perl?
How to make the following assignment, as arrayreference assignment?my $arr_ref=[1,2,3,4,4,elem];
What is caller function in perl?
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