Span selected Nodes after have declared the number of comumns and rows in javafx

I would to know the way to span the next node in the second column after the node containing the labal "Info" to the rest of the remaining columns and on 3 rows below.

Below is my present output with the associated code.

public class Test extends Application {

    @Override
    public void start(Stage primaryStage) {
        GridPane root = new GridPane();
        root.setGridLinesVisible(true);
        final int numCols = 5 ;
        final int numRows = 12 ;
        for (int i = 0; i < numCols; i++) {
            ColumnConstraints colConst = new ColumnConstraints();
            colConst.setPercentWidth(100.0 / numCols);
            root.getColumnConstraints().add(colConst);
        }
        for (int i = 0; i < numRows; i++) {
            RowConstraints rowConst = new RowConstraints();
            rowConst.setPercentHeight(100.0 / numRows);
            root.getRowConstraints().add(rowConst);         
        }
        
        Label nameLbl = new Label("Name");
        Label nameFld = new Label();
        Label infoLbl = new Label("Info : ");
        Label infoFld = new Label();
        infoFld.setStyle("-fx-background-color: lavender;-fx-font-size: 7pt;-fx-padding: 10 0 0 0;");   

        Button okBtn = new Button("OK");
        Button cancelBtn = new Button("Cancel");
        
        Label commentBar = new Label("Status: Ready");
        commentBar.setStyle("-fx-background-color: lavender;-fx-font-size: 7pt;-fx-padding: 10 0 0 0;");       
        
        root.add(nameLbl, 0, 0, 1, 1);   
        root.add(nameFld, 1, 0, 1, 1);   
        root.add(infoLbl, 0, 1, 1, 1);  
        root.add(infoFld, 1, 1, 4, 1);  
        root.add(okBtn, 3, 9, 1, 1);    
        root.add(cancelBtn, 2, 9, 1, 1); 
        root.add(commentBar, 0, 11, GridPane.REMAINING, 1);     
        
        primaryStage.setScene(new Scene(root, 900, 500));
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

>Solution :

If you want the label to span four rows, as well as four columns, set its column span as well as its row span to 4:

    // root.add(infoFld, 1, 1, 4, 1);
    root.add(infoFld, 1, 1, 4, 4);

By default a label will not grow beyond its preferred size (which in this case is zero, because it has no text). Allow it to grow indefinitely:

infoFld.setMaxWidth(Double.MAX_VALUE);
infoFld.setMaxHeight(Double.MAX_VALUE);