HBox_setPrefSize1
 
Code:

package javafxtemplate1;
//Recursion_BindContent_ListView1
//textProperty().addListener Listview Label
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Separator;
import javafx.scene.control.ToolBar;
import javafx.scene.layout.FlowPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import java.lang.Boolean;

/**
*
* @author Manas9
*/
public class JavaFXTemplate1 extends Application {
//ImageView imageView = new ImageView();
//Button clearBtn = new Button("Clear Image");
//Node imagenode;
Label label1 =new Label("L1");
Label label2 =new Label("L1");
Scene scene;
//Pane pane1 = new Pane();
FlowPane pane1 = new FlowPane();
HBox hb1 = new HBox(10); HBox hb2 = new HBox(10);
String str1; Color color1 ;//= new Color();
@Override
public void start(Stage primaryStage) throws Exception {
ToolBar toolBar1,toolBar2 ;
boolean ok = true;
toolBar1 = new ToolBar(
new Button("New"),
new Button("Open"),
new Button("Save"),
new Separator(),
new Button("Clean"));
toolBar2 = new ToolBar(
new Button("Compile"),
new Button("Run"),
new Separator(),
new Button("Debug"),
new Button("Profile")
);
primaryStage.setTitle("Pane HBox Examples");
//hb1.setPrefSize(200, 100);
hb2.setPrefSize(200, 100);
hb1.setPrefSize(200, 100);
hb1.getChildren().addAll( toolBar1);
hb2.getChildren().addAll( toolBar2);
hb1.setStyle("-fx-padding: 10;" +
"-fx-border-style: solid inside;" +
"-fx-border-width: 2;" +
"-fx-border-insets: 5;" +
"-fx-border-radius: 5;" +
"-fx-border-color: blue;");
hb2.setStyle("-fx-padding: 10;" +
"-fx-border-style: solid inside;" +
"-fx-border-width: 2;" +
"-fx-border-insets: 5;" +
"-fx-border-radius: 5;" +
"-fx-border-color: red;");

pane1.getChildren().addAll(hb1, hb2);
Scene scene = new Scene(pane1,800,600);
//lineChart.getData().add(series);
primaryStage.setScene(scene);
primaryStage.show();
}

//


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


}