public static <K1, V1, K2, V2> MutableMap<K2, V2> collect(
            Map<K1, V1> map,
            Function<? super K1, ? extends K2> keyFunction,
            Function<? super V1, ? extends V2> valueFunction)
    {
        return MapIterate.collect(map, keyFunction, valueFunction, UnifiedMap.<K2, V2>newMap());
    }
public static < K1 , V1 , K2 , V2 > MutableMap < K2 , V2 > collect ( Map < K1 , V1 > map , Function < ? super K1 , ? extends K2 > keyFunction , Function < ? super V1 , ? extends V2 > valueFunction ) { return MapIterate . collect ( map , keyFunction , valueFunction , UnifiedMap . < K2 , V2 > newMap ( ) ) ; }
For each key-value entry of a map, applies a function to each, and adds the transformed entry to a new Map.