How can I have a HashMap with unique keys in Java?
Or even does this make any sense to have unique keys in HashMap or the keys are unique by default?
I am a newbie.
thx
How can I have a HashMap with unique keys in Java? Or even does
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How can I have a HashMap with unique keys in Java?
Or even does this make any sense to have unique keys in HashMap or the keys are unique by default?
I am a newbie.
thx
The keys are unique in all maps. The difference between the various maps implementations concern the possibility of null keys, the order of iteration and concurrency issues.