diff --git a/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/Flight.java b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/Flight.java
new file mode 100644
index 0000000..b880047
--- /dev/null
+++ b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/Flight.java
@@ -0,0 +1,54 @@
+package com.kodilla.good.patterns.flights;
+
+public class Flight {
+    private final int flightNumber;
+    private final String airportForDeparture;
+    private final String airportForArrival;
+
+    public Flight(int flightNumber, String airportForDeparture, String airportForArrival) {
+        this.flightNumber = flightNumber;
+        this.airportForDeparture = airportForDeparture;
+        this.airportForArrival = airportForArrival;
+    }
+
+    public int getFlightNumber() {
+        return flightNumber;
+    }
+
+    public String getAirportForDeparture() {
+        return airportForDeparture;
+    }
+
+    public String getAirportForArrival() {
+        return airportForArrival;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Flight flight = (Flight) o;
+
+        if (flightNumber != flight.flightNumber) return false;
+        if (!airportForDeparture.equals(flight.airportForDeparture)) return false;
+        return airportForArrival.equals(flight.airportForArrival);
+    }
+
+    @Override
+    public int hashCode() {
+        int result = flightNumber;
+        result = 31 * result + airportForDeparture.hashCode();
+        result = 31 * result + airportForArrival.hashCode();
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "Flight{" +
+                "flightNumber=" + flightNumber +
+                ", airportForDeparture='" + airportForDeparture + '\'' +
+                ", airportForArrival='" + airportForArrival + '\'' +
+                '}';
+    }
+}
diff --git a/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightDb.java b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightDb.java
new file mode 100644
index 0000000..faceed1
--- /dev/null
+++ b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightDb.java
@@ -0,0 +1,8 @@
+package com.kodilla.good.patterns.flights;
+
+import java.util.List;
+
+public interface FlightDb {
+
+    List<Flight> getFlights();
+}
diff --git a/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsApp.java b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsApp.java
new file mode 100644
index 0000000..3d2d105
--- /dev/null
+++ b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsApp.java
@@ -0,0 +1,46 @@
+package com.kodilla.good.patterns.flights;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class FlightsApp {
+    private FlightDb flightDb;
+
+    public FlightsApp(FlightDb flightDb) {
+        this.flightDb = flightDb;
+    }
+
+    public List<Flight> flightsFrom(String airportForDeparture) {
+        return flightDb.getFlights().stream()
+                .filter(f -> f.getAirportForDeparture().equals(airportForDeparture))
+                .collect(Collectors.toList());
+    }
+
+    public List<Flight> flightsTo(String airportForArrival) {
+        return flightDb.getFlights().stream()
+                .filter(f -> f.getAirportForArrival().equals(airportForArrival))
+                .collect(Collectors.toList());
+    }
+
+    public List<Flight> flightsThrough(String airportToFlyThrough) {
+        List<String> listFlightsEndingIn = flightDb.getFlights().stream()
+                .filter(f -> f.getAirportForArrival().equals(airportToFlyThrough))
+                .map(f -> f.getAirportForDeparture())
+                .collect(Collectors.toList());
+
+        List<String> listFlightsStartingIn = flightDb.getFlights().stream()
+                .filter(f -> f.getAirportForDeparture().equals(airportToFlyThrough))
+                .map(f -> f.getAirportForArrival())
+                .collect(Collectors.toList());
+
+        List<Flight> flightsThroughAirportIn = new ArrayList<>();
+
+        for(String airportForDeparture : listFlightsEndingIn) {
+            for(String airportForArrival : listFlightsStartingIn) {
+                flightsThroughAirportIn.add(new Flight(0, airportForDeparture, airportForArrival));
+            }
+        }
+        return flightsThroughAirportIn;
+    }
+}
diff --git a/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsList.java b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsList.java
new file mode 100644
index 0000000..c4d7279
--- /dev/null
+++ b/kodilla-good-patterns/src/main/java/com/kodilla/good/patterns/flights/FlightsList.java
@@ -0,0 +1,19 @@
+package com.kodilla.good.patterns.flights;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class FlightsList implements FlightDb {
+    @Override
+    public List<Flight> getFlights() {
+        List<Flight> flightsList = new ArrayList<>();
+        flightsList.add(new Flight(14739, "Warsaw", "LA"));
+        flightsList.add(new Flight(22033, "LA", "Berlin"));
+        flightsList.add(new Flight(44467, "Paris", "Moscow"));
+        flightsList.add(new Flight(50902, "Moscow", "LA"));
+        flightsList.add(new Flight(14002, "Warsaw", "Moscow"));
+        flightsList.add(new Flight(17099, "Paris", "Warsaw"));
+
+        return flightsList;
+    }
+}
diff --git a/kodilla-good-patterns/src/test/java/com/kodilla/good/patterns/flights/FlightsTestSuite.java b/kodilla-good-patterns/src/test/java/com/kodilla/good/patterns/flights/FlightsTestSuite.java
new file mode 100644
index 0000000..f965fbe
--- /dev/null
+++ b/kodilla-good-patterns/src/test/java/com/kodilla/good/patterns/flights/FlightsTestSuite.java
@@ -0,0 +1,50 @@
+package com.kodilla.good.patterns.flights;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class FlightsTestSuite {
+
+    @Test
+    public void testFlightsFrom() {
+        // Given
+        FlightsList flightsList = new FlightsList();
+        FlightsApp flightsApp = new FlightsApp(flightsList);
+
+        // When
+        int numberOfFlightsFromWarsaw = flightsApp.flightsFrom("Warsaw").size();
+        int numberOfFlightsFromLa = flightsApp.flightsFrom("LA").size();
+
+        // Then
+        Assert.assertEquals(2, numberOfFlightsFromWarsaw);
+        Assert.assertEquals(1, numberOfFlightsFromLa);
+    }
+
+    @Test
+    public void testFlightsTo() {
+        // Given
+        FlightsList flightsList = new FlightsList();
+        FlightsApp flightsApp = new FlightsApp(flightsList);
+
+        // When
+        int numberOfFlightsToMoscow = flightsApp.flightsTo("Moscow").size();
+        int numberOfFlightsToWarsaw = flightsApp.flightsTo("Warsaw").size();
+
+        // Then
+        Assert.assertEquals(2, numberOfFlightsToMoscow);
+        Assert.assertEquals(1, numberOfFlightsToWarsaw);
+    }
+
+    @Test
+    public void TestFlightsThrough() {
+        // Given
+        FlightsList flightsList = new FlightsList();
+        FlightsApp flightsApp = new FlightsApp(flightsList);
+
+        // When
+        int numberOfFlightsThroughLa = flightsApp.flightsThrough("LA").size();
+
+        // Then
+        Assert.assertEquals(2, numberOfFlightsThroughLa);
+    }
+}
diff --git a/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ExtraFoodShop.java b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ExtraFoodShop.java
new file mode 100644
index 0000000..c2019d2
--- /dev/null
+++ b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ExtraFoodShop.java
@@ -0,0 +1,10 @@
+package com.kodilla.patterns.food2door;
+
+public class ExtraFoodShop implements ProductProcessor {
+
+    @Override
+    public boolean process() {
+        System.out.println("Lorem ipsum dolor");
+        return true;
+    }
+}
diff --git a/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/GlutenFreeShop.java b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/GlutenFreeShop.java
new file mode 100644
index 0000000..03666af
--- /dev/null
+++ b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/GlutenFreeShop.java
@@ -0,0 +1,10 @@
+package com.kodilla.patterns.food2door;
+
+public class GlutenFreeShop implements ProductProcessor {
+
+    @Override
+    public boolean process() {
+        System.out.println("Lorem ipsum dolor");
+        return true;
+    }
+}
diff --git a/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/HealthyShop.java b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/HealthyShop.java
new file mode 100644
index 0000000..7d4fd1e
--- /dev/null
+++ b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/HealthyShop.java
@@ -0,0 +1,10 @@
+package com.kodilla.patterns.food2door;
+
+public class HealthyShop implements ProductProcessor {
+
+    @Override
+    public boolean process() {
+        System.out.println("Lorem ipsum dolor");
+        return true;
+    }
+}
diff --git a/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ProductProcessor.java b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ProductProcessor.java
new file mode 100644
index 0000000..9ae52b4
--- /dev/null
+++ b/kodilla-patterns/src/main/java/com/kodilla/patterns/food2door/ProductProcessor.java
@@ -0,0 +1,6 @@
+package com.kodilla.patterns.food2door;
+
+public interface ProductProcessor {
+
+    boolean process();
+}