strange errors on my ridable interface

src/main/java/com/zipcodewilmington/froilansfarm/Animals/Egg.java

@@ -10,7 +10,7 @@ public class Egg implements Edible, Fertilizable {
     private boolean isFertilized = false;
 
 
-    public boolean getisFertilized() {
+    public boolean getIsFertilized() {
         return isFertilized;
     }
     public boolean setIsFertilized(boolean rooster) {
@@ -19,7 +19,7 @@ public class Egg implements Edible, Fertilizable {
     }
 
     public boolean isEdible(){
-        return !isFertilized();
+        return !getIsFertilized();
     };
 
     public void foodIsEaten(int numberEaten){

src/main/java/com/zipcodewilmington/froilansfarm/Animals/Horse.java

@@ -19,16 +19,16 @@ public class Horse extends Amimal implements Ridable {
         return true;
     }
 
-    public String ride(){
-        String result = "";
-        if (isRideable() && rider.getIsMounted())
-            for (int i=0; i<stable.getHorses(); i++) {
-            result += "Horse number " + i + " has been ridden today. \n";
+    public String ride() {
+        String result = "No riding today";
+        if (getIsRideable() && rider.getIsMounted()) {
+            result = "";
+            for (int i = 0; i < stable.getHorses(); i++) {
+                result += "Horse number " + i + " has been ridden today. \n";
+            }
         }
+
         return result;
     }
 
-
-
-
 }

src/main/java/com/zipcodewilmington/froilansfarm/Fertilizable.java

@@ -2,6 +2,6 @@ package com.zipcodewilmington.froilansfarm;
 
 public interface Fertilizable {
 
-    boolean isFertilized();
+    boolean getIsFertilized();
 
 }

src/main/java/com/zipcodewilmington/froilansfarm/Holders/CropRow.java

@@ -1,4 +1,7 @@
 package com.zipcodewilmington.froilansfarm.Holders;
 
 public class CropRow extends Field {
+
+
+
 }

src/main/java/com/zipcodewilmington/froilansfarm/Ridable.java

@@ -2,7 +2,9 @@ package com.zipcodewilmington.froilansfarm;
 
 public interface Ridable {
 
-    boolean isRideable();
+    boolean getIsRideable();
+
+    String ride();
 
 
 

src/main/java/com/zipcodewilmington/froilansfarm/Vehicle/Vehicle.java

@@ -9,8 +9,13 @@ public class Vehicle implements Ridable, NoiseMaker {
         return "VROOM VROOM!";
     }
 
-    public boolean isRideable(){
+    public boolean getIsRideable(){
         return true;
     }
 
+    public String ride(){
+     return "Moving around on a vehicle";
+    };
+
+
 }