chess board complete

src/backend/Board.java

@@ -3,19 +3,20 @@ package backend;
 import java.util.ArrayList;
 
 public class Board {
+	private int line;
+	private int col;
 
 	public Board(int colNum, int lineNum) {
-		//TODO
+		this.col=colNum;
+		this.line=lineNum;
 	}
 
 	public int getWidth() {
-		//TODO
+		return this.line;
-		return 0;
 	}
 
 	public int getHeight() {
-		//TODO
+		return this.col;
-		return 0;
 	}
 
 	public int getTurnNumber() {

src/backend/Piece.java

@@ -1,13 +1,15 @@
 package backend;
 
 public class Piece {
+	private int X;
+	private int Y;
 
 	public int getX() {
-		return 0;
+		return this.X;
 	}
 
 	public int getY() {
-		return 0;
+		return this.Y;
 	}
 	
 	public PieceType getType() {