Iterator has .next() - is there a way to get the previous element instead of the next one?

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离开以前
离开以前 2020-12-11 00:46

I have an Iterator that I use on a HashMap, and I save and load the iterator. is there a way to get the previous key in the HashMap with Iterator? (java.util.Iterator)

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  •  执念已碎
    2020-12-11 01:06

    No, an Iterator defines only 3 methods:

    boolean hasNext()
    E next()
    void remove() 
    

    You can of course implement your own iterator.

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