Refactore MinesweeperGame

src/test/java/Minesweeper/MinesweeperGame.java

@@ -6,17 +6,24 @@ import javax.swing.JPanel;
 
 public class MinesweeperGame extends JPanel {
 
+	private static final long serialVersionUID = 1L;
+	private static final int WIDTH = 600, HEIGTH = 600;
+	private static final int CELLSIZE = 40;
+	private int playfieldSize;
+
 	public MinesweeperGame(int _playfieldSize) {
-		this.setSize(600, 600);
+		this.setSize(WIDTH, HEIGTH);
+		playfieldSize = _playfieldSize;
 		setLayout(null);
-		initPlayfield(_playfieldSize);
+		
+		initPlayfield();
 	}
 
-	private void initPlayfield(int _playfieldSize) {
-		for (int i = 0; i < _playfieldSize; i++) {
-			for (int j = 0; j < _playfieldSize; j++) {
+	private void initPlayfield() {
+		for (int i = 0; i < playfieldSize; i++) {
+			for (int j = 0; j < playfieldSize; j++) {
 				JButton b = new JButton();
-				b.setBounds(j * 40, i * 40, 40, 40);
+				b.setBounds(j * CELLSIZE, i * CELLSIZE, CELLSIZE, CELLSIZE);
 				add(b);
 			}
 		}
@@ -27,7 +34,7 @@ public class MinesweeperGame extends JPanel {
 		MinesweeperGame ttt = new MinesweeperGame(8);
 
 		f.add(ttt);
-		f.setSize(600, 600);
+		f.setSize(WIDTH, HEIGTH);
 		f.setLayout(null);
 		f.setVisible(true);