adding forgotten testing by using examples

src/Main.java

@@ -1,19 +1,43 @@
 import backend.Board;
-import backend.CheckKing;
+import backend.Piece;
+import backend.PieceType;
 import windowInterface.MyInterface;
 
 public class Main {
 
+    public static void main(String[] args) {
+        //basic board initialization
+        Board board = new Board(8, 8);
+        board.populateBoard();
+        System.out.println("Initial board:");
+        System.out.println(board.toString());
         
-	public static void main(String[] args) {
-		// testing : 
-		Board testBoard = new Board(8, 8);
-		testBoard.populateBoard();
-		System.out.println(testBoard.toString());
-		System.out.println(testBoard.getWidth() + "*" + testBoard.getHeight());
+        //test critical game functions (quick verification)
+        System.out.println("\nTesting core functionality:");
         
-		// launches graphical interface : 
-		MyInterface mjf = new MyInterface();
-		mjf.setVisible(true);
-	}
+        //test piece movement
+        System.out.println("White pawn at (4,6) moves:");
+        Piece pawn = board.getBoardMatrix()[6][4];
+        System.out.println(board.getValidMoves(pawn, true));
+        
+        //test turn management
+        System.out.println("\nCurrent turn: " + (board.isTurnWhite() ? "White" : "Black"));
+        
+        //test save/load functionality
+        String[] savedGame = board.toFileRep();
+        System.out.println("\nSaved game turn: " + savedGame[8]);
+        
+        //test move execution
+        System.out.println("\nMaking a sample move (e2-e4):");
+        board.userTouch(4, 6);  // Select pawn
+        board.userTouch(4, 4);  // Move pawn
+        System.out.println("Board after move:");
+        System.out.println(board.toString());
+        
+        //test undo functionality
+        System.out.println("\nUndoing last move:");
+        board.undoLastMove();
+        System.out.println("Board after undo:");
+        System.out.println(board.toString());
+    }
 }