making flightseat child of seat

src/main/java/hs/fulda/de/ci/exam/project/FlightSeat.java

@@ -1,10 +1,11 @@
 package hs.fulda.de.ci.exam.project;
 
-public class FlightSeat {
+public class FlightSeat extends Seat {
     private String reservationNumer;
     private double fare;
 
     public FlightSeat(double fare, String reservationNumer) {
+        super();
         this.fare = fare;
         this.reservationNumer = reservationNumer;
     }

src/main/java/hs/fulda/de/ci/exam/project/Seat.java

@@ -10,6 +10,9 @@ public class Seat {
         this.seatType = seatType;
         this.seatClass = seatClass;
     }
+    public Seat(){
+
+    }
 
     public SeatClass getSeatClass() {
         return seatClass;

src/test/java/hs/fulda/de/ci/exam/project/SeatTest.java

@@ -19,4 +19,11 @@ public class SeatTest {
         assertThat(seat.getSeatType()).isEqualTo(SeatType.Regular);
         assertThat(seat.getSeatClass()).isEqualTo(SeatClass.Economy);
     }
+
+    @Test
+    public void testMakingFlightTestParentClass(){
+        Seat seat = new FlightSeat(100.0, "1234");
+        assertThat(((FlightSeat) seat).getFare()).isEqualTo(100.0);
+        assertThat(((FlightSeat) seat).getReservationNumber()).isEqualTo("1234");
+    }
 }