need to update key , value pair in map from properties file

need to update key , value pair in map from properties file

I have a map with key , value pair. with key as integer and value as string datatype. I want the keys and values to be dynamically updated into map. that is i have .properties file where i will update the keys and values whenever needed. i want those values to be updated in map. can anyone please answer this. thanks in advance.

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