checked board

src/backend/Board.java

@@ -4,28 +4,36 @@ import java.util.ArrayList;
 
 public class Board {
 	
+	private int width;
+    private int height;
+    private ArrayList<Piece> pieces;
+    private int turnNumber;
+    private boolean turnWhite;
+
 	public Board(int colNum, int lineNum) {
-		//TODO
+		 this.width = colNum;
+		    this.height = lineNum;
+		    this.pieces = new ArrayList<>();
 	}
 
 	public int getWidth() {
-		//TODO
-		return 0;
+		
+		return width;
 	}
 
 	public int getHeight() {
-		//TODO
-		return 0;
+	
+		return height;// the above part set the checked board
 	}
 
 	public int getTurnNumber() {
 		//TODO
-		return 0;
+		 return this.turnNumber;
 	}
 
 	public boolean isTurnWhite() {
 		//TODO
-		return false;
+		return this.turnWhite;
 	}
 
 	public void setPiece(boolean isWhite, PieceType type, int x, int y) {