Reset game on game end

src/main/java/TicTacToe/TicTacToeGame.java

@@ -74,13 +74,13 @@ public class TicTacToeGame extends JPanel {
 	public void endTurn() {
 		if(checkPlayfield() != 0) {
 			JOptionPane.showMessageDialog(getParent(),"Player: " + playerID + " Wins!");	
-			System.exit(0);
+			resetGame();
 		}
 		
 		turns++;
 		if(turns >= playFieldSize) {
 			JOptionPane.showMessageDialog(getParent(),"Draw!");	
-			System.exit(0);
+			resetGame();
 		}
 		
 		playerID++;
@@ -106,5 +106,13 @@ public class TicTacToeGame extends JPanel {
 		return 0;
 	}
 	
+	public void resetGame() {
+		for (cell c : field) {
+			c.reset();
+		}
+		playerID = 1;
+		turns = 0;
+	}
+
 
 }

src/main/java/TicTacToe/cell.java

@@ -1,4 +1,5 @@
 package TicTacToe;
+
 import java.awt.Color;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -12,6 +13,7 @@ public class cell extends JButton {
 
 	public cell(TicTacToeGame _ttt) {
 		ttt = _ttt;
+		setBackground(new Color(255,255,255));
 
 		addActionListener(new ActionListener() {
 			@Override
@@ -28,17 +30,20 @@ public class cell extends JButton {
 			setEnabled(false);
 
 			switch (playerID) {
-			case 1:  setBackground(new Color(255,0,0));
-			break;
-			case 2:  setBackground(new Color(0,0,255));
+			case 1:
+				setBackground(new Color(255, 0, 0));
 				break;
-			default: ;
+			case 2:
+				setBackground(new Color(0, 0, 255));
 				break;
 			}
 		}
 	}
 	
-	
-	
+	protected void reset() {
+		playerID = 0;
+		setEnabled(true);
+		setBackground(new Color(255,255,255));
+	}
 
 }