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HashMap<Integer, Integer> ++ value

 
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Hello, I have HashMap<Integer, Integer>, with 100 numbers inside (1-100 range) where this number is key, and every has its default value which is 0.

Now I'm wondering how can I get for example object from this map, lets say with key 1 and ++ its value? So it would change from 0 to 1 in this case.

Thanks!
 
Java Cowboy
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Very simple: get the number at the specific index, add 1 to it, and put it back at the same index.
 
Mathew Mintalm
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Thank you for answer.
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