diff --git a/src/GameController.java b/src/GameController.java
index 797def8..1d562eb 100644
--- a/src/GameController.java
+++ b/src/GameController.java
@@ -7,8 +7,15 @@ public class GameController {
 
     public void startLocalGame(Class<? extends  LocalPlayer> localPlayerClass, Class<? extends AiPlayer> enemyClass, int size) throws InstantiationException, IllegalAccessException {
 
-		LocalPlayer localPlayer = localPlayerClass.newInstance();
-		AiPlayer aiPlayer = enemyClass.newInstance();
+		LocalPlayer localPlayer;
+		AiPlayer aiPlayer;
+		try {
+			localPlayer = localPlayerClass.getDeclaredConstructor().newInstance();
+			aiPlayer = enemyClass.getDeclaredConstructor().newInstance();
+		} catch (Exception e) {
+			e.printStackTrace();
+			return;
+		}
 		localPlayer.setEnemy(aiPlayer);
 		aiPlayer.setEnemy(localPlayer);
 	}
diff --git a/src/OnlinePlayer.java b/src/OnlinePlayer.java
index f53d50d..66316d6 100644
--- a/src/OnlinePlayer.java
+++ b/src/OnlinePlayer.java
@@ -2,4 +2,10 @@ import java.net.Socket;
 
 public abstract class OnlinePlayer extends Player{
     private Socket socket;
+
+    public OnlinePlayer(int size, Socket socket) {
+        super(size);
+        this.socket = socket;
+        //TODO Auto-generated constructor stub
+    }
 }
diff --git a/src/SpecificAiPlayerEasy.java b/src/SpecificAiPlayerEasy.java
index 0bcce8c..c3ac64f 100644
--- a/src/SpecificAiPlayerEasy.java
+++ b/src/SpecificAiPlayerEasy.java
@@ -1,7 +1,7 @@
 
-public class SpecificAiPlayer1 extends AiPlayer{
+public class SpecificAiPlayerEasy extends AiPlayer{
 	
-	public SpecificAiPlayer1(int size) {
+	public SpecificAiPlayerEasy(int size) {
 		super(size);
 	}
 }
diff --git a/src/SpecificAiPlayerHard.java b/src/SpecificAiPlayerHard.java
index 0bcce8c..a28fa6c 100644
--- a/src/SpecificAiPlayerHard.java
+++ b/src/SpecificAiPlayerHard.java
@@ -1,7 +1,7 @@
 
-public class SpecificAiPlayer1 extends AiPlayer{
+public class SpecificAiPlayerHard extends AiPlayer{
 	
-	public SpecificAiPlayer1(int size) {
+	public SpecificAiPlayerHard(int size) {
 		super(size);
 	}
 }
diff --git a/src/SpecificAiPlayerMedium.java b/src/SpecificAiPlayerMedium.java
index b808ff9..c122f43 100644
--- a/src/SpecificAiPlayerMedium.java
+++ b/src/SpecificAiPlayerMedium.java
@@ -1,3 +1,6 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.awt.Point;
 
 public class SpecificAiPlayerMedium extends AiPlayer{
 	
@@ -13,7 +16,7 @@ public class SpecificAiPlayerMedium extends AiPlayer{
         // Shoot at the enemy and receive the hit response
         enemy.receiveShoot(nextShot);
 
-		HitResponse hitResponse = enemy.board.getHitResponsOnPoint(nextShot)
+		HitResponse hitResponse = enemy.board.getHitResponsOnPoint(nextShot);
         // If it's a hit or sunk, add adjacent cells to the hitsQueue
         if (hitResponse.getHitResponse() == HitResponseType.HIT) {
             addAdjacentPoints(nextShot);
@@ -58,6 +61,11 @@ public class SpecificAiPlayerMedium extends AiPlayer{
         }
     }
 
+    private boolean alreadyShot(Point p) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'alreadyShot'");
+    }
+
     private boolean isValidPoint(Point point) {
         return point.x >= 0 && point.x < board.getSize() &&
                point.y >= 0 && point.y < board.getSize();