need to fix loop

src/Main.java

+import javafx.application.Application;
+import javafx.scene.Group;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Rectangle;
+import javafx.stage.Stage;
+import javafx.scene.Scene;
 
-public class Main {
+public class Main  extends Application {
+	
+	
+	public void start(Stage stage) {
+		int Boardsize = 10;
+		int[][]PlayerShips = new int[Boardsize][Boardsize];
+		Rectangle[][] playerRects = new Rectangle[Boardsize][Boardsize];
+		
+		
+	
+	Group group = new Group ();
+	{
+		for (int y = 0; y < 10; ++y) 
+		{ 
+			for (int x = 0; x < 10; ++x) 
+			{
+				Rectangle r = new Rectangle ();
+				r.setX(90 * x);
+				r.setY(90 * y);
+				r.setWidth(90);
+				r.setHeight(90);
+				r.setFill(Color.BLUE);
+				r.setStroke(Color.WHITE);
+				group.getChildren().add(r);
+				playerRects[x][y] = r;
+				
+				final int xc = x;
+				final int yc = y;
+				
+				
+				r.setOnMouseClicked(event -> {
+					int legnth = 5;
+					
+					
+					System.out.println("click at " + xc + " " + yc);
+					
+					for(int i = 0;i < legnth; i++) {
+						legnth--;
+						
+						System.out.println(legnth);
+						
+						
+							
+					playerRects[xc][yc].setFill(Color.GREEN);
+					playerRects[xc+i][yc].setFill(Color.GREEN);
+					
+						}
+						
+					
+															
+						
+				});
+			}
+		}
+							Scene scene = new Scene(group, 900,900);
+							stage.setScene(scene);
+							stage.show();
+	}
+	}
+						
+						
+						
+				
+		
 
 	public static void main(String[] args) {
-		System.out.println("Battleships");
-		System.out.println("Hello world");
-		System.out.println("Hello world again");
+		launch(args);
+	
 	}
+	
 
 }