Singleton: Difference between revisions

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(added Io. someone should check this though. it doesn't strictly satisfy the requirements.)
m (Moved to Basic learning cat)
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{{task}}A Global Singleton is a class of which only one instance exists within a program. Any attempt to use non-static members of the class involves performing operations on this one instance.
{{task|Basic language learning}}A Global Singleton is a class of which only one instance exists within a program. Any attempt to use non-static members of the class involves performing operations on this one instance.


=={{header|Ada}}==
=={{header|Ada}}==