Cell class which defines a cell in the grid of the game.

Cell.java

+import javafx.geometry.Pos;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.*;
+import javafx.scene.control.Label;
+import javafx.scene.text.Font;
+
+public class Cell extends Pane {
+
+    private Label label = new Label();
+    private TextField input;
+    private int i;
+    private int j;
+
+    public Cell(int n, int i, int j) {
+
+        this.i = i;
+        this.j = j;
+
+        input = new TextField();
+        setPrefSize(400/n, 400/n);
+
+        setStyle("- fx-background-color: transparent;");
+
+        input.setStyle("-fx-text-box-border: transparent; -fx-background-color: transparent;");
+        input.setAlignment(Pos.CENTER);
+        input.setFont(Font.font(35));
+        input.setPrefWidth(400/n);
+        input.setPrefHeight(400/n);
+
+        getChildren().add(input);
+    }
+
+    public void setLabel(String label) {
+
+        this.label.setText(label);
+        this.label.setAlignment(Pos.TOP_LEFT);
+        getChildren().add(this.label);
+    }
+
+    public String getLabel() {
+        return label.getText();
+    }
+
+    public TextField getTextField() {
+        return input;
+    }
+
+    public boolean isNumeric(String text) {
+        try {
+            Integer.parseInt(text);
+            return true;
+        } catch(Exception e) {
+            return false;
+        }
+    }
+    public int getRow() {
+        return i;
+    }
+
+    public int getColumn() {
+        return j;
+    }
+}