Bugfix numbers not showen

src/main/java/Minesweeper/Cell.java

@@ -91,7 +91,9 @@ public class Cell extends JButton {
 
 	public void reveal() {
 		if (type == CellType.Number) {
-			setText(String.valueOf(value));
+			if(value > 0) {				
+				setText(String.valueOf(value));
+			}
 		} else {
 			setBackground(MINECOLOR);
 		}
@@ -104,6 +106,7 @@ public class Cell extends JButton {
 		
 		setBackground(FLOODEDCOLOR);
 		setEnabled(false);
+		reveal();
 		playfield.cellFlooded();
 		
 		if (value == 0) {