Local Variable Type involving lambda

RideTest.java

import java.util.Comparator;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Stream;

public class RideTest {

    interface RideProvider {
        long getFareEstimate(String start_lat, String start_lng, String end_lat, String end_lng, String type);
    }

    public static void main(String[] args) {

        var start_lat = "37.7749295";//San Francisco
        var start_lng = "-122.41941550000001";//San Francisco

        var end_lat = "37.3382082";//San Jose
        var end_lng = "-121.88632860000001";//San Jose

        var lyft = new RideProvider() {
            @Override
            public long getFareEstimate(String start_lat, String start_lng, String end_lat, String end_lng, String type) {
                var estimated_cost_cents_max = 0;
                switch (type) {
                    case "Line":
                        estimated_cost_cents_max = 3307;
                        break;

                    case "Lyft":
                        estimated_cost_cents_max = 7306;
                        break;

                    case "Plus":
                        estimated_cost_cents_max = 12451;
                        break;


                    case "Premier":
                        estimated_cost_cents_max = 17562;
                        break;

                    case "Lux":
                        estimated_cost_cents_max = 23624;
                        break;

                    case "Lux SUV":
                        estimated_cost_cents_max = 25879;
                        break;

                }

                return estimated_cost_cents_max;
            }
        };

        var lyftFuture = CompletableFuture.supplyAsync(() -> lyft.getFareEstimate(start_lat, start_lng, end_lat, end_lng, "Lyft"));

        var uber = new RideProvider() {
            @Override
            public long getFareEstimate(String start_lat, String start_lng, String end_lat, String end_lng, String type) {
                var estimated_cost_cents_max = 0;
                switch (type) {
                    case "POOL":
                        estimated_cost_cents_max = 7000;
                        break;

                    case "EXPRESS POOL":
                        estimated_cost_cents_max = 7000;
                        break;

                    case "uberX":
                        estimated_cost_cents_max = 9200;
                        break;

                    case "WAV":
                        estimated_cost_cents_max = 9200;
                        break;

                    case "ASSIST":
                        estimated_cost_cents_max = 9200;
                        break;

                    case "uberXL":
                        estimated_cost_cents_max = 14800;
                        break;

                    case "SELECT":
                        estimated_cost_cents_max = 20900;
                        break;

                    case "SUV":
                        estimated_cost_cents_max = 30600;
                        break;
                }

                return estimated_cost_cents_max;
            }
        };

        var uberFuture = CompletableFuture.supplyAsync(() -> uber.getFareEstimate(start_lat, start_lng, end_lat, end_lng, "uberX"));

        // compare the futures for best fare estimate
        Stream.of(lyftFuture, uberFuture)
                .map(CompletableFuture::join)
                .min(Comparator.comparing(i -> i))
                .ifPresent(estimated_cost_cents_max -> System.out.println("$" + estimated_cost_cents_max / 100));
    }
}