Java - Change the value in a HashMap -

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i have hashmap this: hashmap<uuid, customclass>.

customclass has lot of properties make meaningfully unique. need able update value of key in map new instance of customclass. need call method called "customclass.clearinfo()" clears/nulls/zeros out values of properties accordingly.

the problem "put" method changes reference of value refer new instance, when call clearinfo(), hashed value cleared.

i need keep values before call clearinfo().

you can remove object using hashmap.remove(key) method. can put new object in key have removed.

see documentation remove().


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